--- a/jdk/src/share/classes/java/dyn/CallSite.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/java/dyn/CallSite.java	Thu Jan 07 16:16:45 2010 -0800
@@ -26,6 +26,9 @@
 package java.dyn;
 
 import sun.dyn.util.BytecodeName;
+import sun.dyn.Access;
+import sun.dyn.CallSiteImpl;
+import sun.dyn.MethodHandleImpl;
 
 /**
  * An {@code invokedynamic} call site, as reified by the
@@ -52,15 +55,25 @@
  * @see Linkage#registerBootstrapMethod(java.lang.Class, java.dyn.MethodHandle)
  * @author John Rose, JSR 292 EG
  */
-public class CallSite {
+public class CallSite
+        // Note: This is an implementation inheritance hack, and will be removed
+        // with a JVM change which moves the required hidden state onto this class.
+        extends CallSiteImpl
+{
+    private static final Access IMPL_TOKEN = Access.getToken();
+
+    /*
+
     // Fields used only by the JVM.  Do not use or change.
     private Object vmmethod;
     int callerMID, callerBCI;  // supplied by the JVM
 
-    MethodHandle target;
+    private MethodHandle target;
+
     final Object caller;  // usually a class
     final String name;
     final MethodType type;
+    */
 
     /**
      * Make a call site given the parameters from a call to the bootstrap method.
@@ -72,16 +85,21 @@
      * @param type the method handle type derived from descriptor of the {@code invokedynamic} instruction
      */
     public CallSite(Object caller, String name, MethodType type) {
-        this.caller = caller;
-        this.name = name;
-        this.type = type;
+        super(IMPL_TOKEN, caller, name, type);
     }
 
     private static void privateInitializeCallSite(CallSite site, int callerMID, int callerBCI) {
         site.callerMID = callerMID;
         site.callerBCI = callerBCI;
-        if (site.target == null)
-            site.setTarget(site.initialTarget());
+        site.ensureTarget();
+    }
+    private void ensureTarget() {
+        // Note use of super, which accesses the field directly,
+        // without deferring to possible subclass overrides.
+        if (super.getTarget() == null) {
+            super.setTarget(this.initialTarget());
+            super.getTarget().type();  // provoke NPE if still null
+        }
     }
 
     /**
@@ -102,10 +120,11 @@
 
     /**
      * Report the current linkage state of the call site.  (This is mutable.)
-     * The value maybe null only if the call site is currently unlinked.
-     * When a linked call site is invoked, the target method is used directly.
-     * When an unlinked call site is invoked, its bootstrap method receives
-     * the call, as if via {@link Linkage#bootstrapInvokeDynamic}.
+     * The value may not be null after the {@code CallSite} object is returned
+     * from the bootstrap method of the {@code invokedynamic} instruction.
+     * When an {@code invokedynamic} instruction is executed, the target method
+     * of its associated {@code call site} object is invoked directly,
+     * as if via {@link MethodHandle}{@code .invoke}.
      * <p>
      * The interactions of {@code getTarget} with memory are the same
      * as of a read from an ordinary variable, such as an array element or a
@@ -118,7 +137,7 @@
      * @see #setTarget
      */
     public MethodHandle getTarget() {
-        return target;
+        return super.getTarget();
     }
 
     /**
@@ -140,13 +159,13 @@
      */
     public void setTarget(MethodHandle target) {
         checkTarget(target);
-        this.target = target;
+        super.setTarget(target);
     }
 
     protected void checkTarget(MethodHandle target) {
         target.type();  // provoke NPE
         if (!canSetTarget(target))
-            throw new WrongMethodTypeException(String.valueOf(target));
+            throw new WrongMethodTypeException(String.valueOf(target)+target.type()+" should be of type "+type());
     }
 
     protected boolean canSetTarget(MethodHandle target) {
@@ -219,6 +238,10 @@
 
     @Override
     public String toString() {
-        return "CallSite#"+hashCode()+"["+name+type+" => "+target+"]";
+        return "CallSite#"+hashCode()+"["+name+type+" => "+getTarget()+"]";
     }
+
+    // Package-local constant:
+    static final MethodHandle GET_TARGET = MethodHandleImpl.getLookup(IMPL_TOKEN).
+            findVirtual(CallSite.class, "getTarget", MethodType.methodType(MethodHandle.class));
 }

--- a/jdk/src/share/classes/java/dyn/InvokeDynamic.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/java/dyn/InvokeDynamic.java	Thu Jan 07 16:16:45 2010 -0800
@@ -45,6 +45,24 @@
  * class or interface supertype, or an object type; it can never be instantiated.
  * Logically, it denotes a source of all dynamically typed methods.
  * It may be viewed as a pure syntactic marker (an importable one) of static calls.
+ * <p>
+ * Here are some examples of usage:
+ * <p><blockquote><pre>
+ * Object x; String s; int i;
+ * x = InvokeDynamic.greet("world"); // greet(Ljava/lang/String;)Ljava/lang/Object;
+ * s = InvokeDynamic.&lt;String&gt;hail(x); // hail(Ljava/lang/Object;)Ljava/lang/String;
+ * InvokeDynamic.&lt;void&gt;cogito(); // cogito()V
+ * i = InvokeDynamic.&lt;int&gt;#"op:+"(2, 3); // "op:+"(II)I
+ * </pre></blockquote>
+ * Each of the above calls generates a single invokedynamic instruction
+ * with the name-and-type descriptors indicated in the comments.
+ * The argument types are taken directly from the actual arguments,
+ * while the return type is taken from the type parameter.
+ * (This type parameter may be a primtive, and it defaults to {@code Object}.)
+ * The final example uses a special syntax for uttering non-Java names.
+ * Any name legal to the JVM may be given between the double quotes.
+ * None of these calls is complete without a bootstrap method,
+ * which must be registered by the static initializer of the enclosing class.
  * @author John Rose, JSR 292 EG
  */
 public final class InvokeDynamic {

--- a/jdk/src/share/classes/java/dyn/InvokeDynamicBootstrapError.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/java/dyn/InvokeDynamicBootstrapError.java	Thu Jan 07 16:16:45 2010 -0800
@@ -52,4 +52,16 @@
     public InvokeDynamicBootstrapError(String s) {
         super(s);
     }
+
+    /**
+     * Constructs a {@code InvokeDynamicBootstrapError} with the specified
+     * detail message and cause.
+     *
+     * @param s the detail message.
+     * @param cause the cause.
+     */
+    public InvokeDynamicBootstrapError(String s, Throwable cause) {
+        super(s);
+        this.initCause(cause);
+    }
 }

--- a/jdk/src/share/classes/java/dyn/JavaMethodHandle.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/java/dyn/JavaMethodHandle.java	Thu Jan 07 16:16:45 2010 -0800
@@ -25,6 +25,8 @@
 
 package java.dyn;
 
+import sun.dyn.Access;
+
 /**
  * A Java method handle extends the basic method handle type with additional
  * programmer defined methods and fields.
@@ -39,31 +41,105 @@
  * of the entry point method handle, with the leading parameter type
  * omitted.
  * <p>
- * Here is an example of usage:
+ * Here is an example of usage, creating a hybrid object/functional datum:
  * <p><blockquote><pre>
- *     class Greeter extends JavaMethodHandle {
+ * class Greeter extends JavaMethodHandle {
+ *     private String greeting = "hello";
+ *     public void setGreeting(String s) { greeting = s; }
+ *     public void run() { System.out.println(greeting+", "+greetee); }
+ *     private final String greetee;
+ *     Greeter(String greetee) {
+ *         super(RUN); // alternatively, super("run")
+ *         this.greetee = greetee;
+ *     }
+ *     // the entry point function is computed once:
+ *     private static final MethodHandle RUN
+ *         = MethodHandles.lookup().findVirtual(Greeter.class, "run",
+ *               MethodType.make(void.class));
+ * }
+ * // class Main { public static void main(String... av) { ...
+ * Greeter greeter = new Greeter("world");
+ * greeter.run();  // prints "hello, world"
+ * // Statically typed method handle invocation (most direct):
+ * MethodHandle mh = greeter;
+ * mh.&lt;void&gt;invoke();  // also prints "hello, world"
+ * // Dynamically typed method handle invocation:
+ * MethodHandles.invoke(greeter);  // also prints "hello, world"
+ * greeter.setGreeting("howdy");
+ * mh.invoke();  // prints "howdy, world" (object-like mutable behavior)
+ * </pre></blockquote>
+ * <p>
+ * In the example of {@code Greeter}, the method {@code run} provides the entry point.
+ * The entry point need not be a constant value; it may be independently
+ * computed in each call to the constructor.  The entry point does not
+ * even need to be a method on the {@code Greeter} class, though
+ * that is the typical case.
+ * <p>
+ * The entry point may also be provided symbolically, in which case the the
+ * {@code JavaMethodHandle} constructor performs the lookup of the entry point.
+ * This makes it possible to use {@code JavaMethodHandle} to create an anonymous
+ * inner class:
+ * <p><blockquote><pre>
+ * // We can also do this with symbolic names and/or inner classes:
+ * MethodHandles.invoke(new JavaMethodHandle("yow") {
+ *     void yow() { System.out.println("yow, world"); }
+ * });
+ * </pre></blockquote>
+ * <p>
+ * Here is similar lower-level code which works in terms of a bound method handle.
+ * <p><blockquote><pre>
+ *     class Greeter {
  *         public void run() { System.out.println("hello, "+greetee); }
  *         private final String greetee;
- *         Greeter(String greetee) {
- *             super(RUN);
- *             this.greetee = greetee;
- *         }
+ *         Greeter(String greetee) { this.greetee = greetee; }
  *         // the entry point function is computed once:
  *         private static final MethodHandle RUN
- *             = MethodHandles.findVirtual(MyMethodHandle.class, "run",
+ *             = MethodHandles.findVirtual(Greeter.class, "run",
  *                   MethodType.make(void.class));
  *     }
+ *     // class Main { public static void main(String... av) { ...
  *     Greeter greeter = new Greeter("world");
  *     greeter.run();  // prints "hello, world"
- *     MethodHandle mh = greeter;
+ *     MethodHandle mh = MethodHanndles.insertArgument(Greeter.RUN, 0, greeter);
  *     mh.invoke();  // also prints "hello, world"
  * </pre></blockquote>
+ * Note that the method handle must be separately created as a view on the base object.
+ * This increases footprint, complexity, and dynamic indirections.
+ * <p>
+ * Here is a pure functional value expressed most concisely as an anonymous inner class:
+ * <p><blockquote><pre>
+ *     // class Main { public static void main(String... av) { ...
+ *     final String greetee = "world";
+ *     MethodHandle greeter = new JavaMethodHandle("run") {
+ *         private void run() { System.out.println("hello, "+greetee); }
+ *     }
+ *     greeter.invoke();  // prints "hello, world"
+ * </pre></blockquote>
  * <p>
- * In this example, the method {@code run} provides the entry point.
- * The entry point need not be a constant value; it may be independently
- * computed in each call to the constructor.  The entry point does not
- * even need to be a method on the Java method handle class, though
- * that is the typical case.
+ * Here is an abstract parameterized lvalue, efficiently expressed as a subtype of MethodHandle,
+ * and instantiated as an anonymous class.  The data structure is a handle to 1-D array,
+ * with a specialized index type (long).  It is created by inner class, and uses
+ * signature-polymorphic APIs throughout.
+ * <p><blockquote><pre>
+ *     abstract class AssignableMethodHandle extends JavaMethodHandle {
+ *       private final MethodHandle setter;
+ *       public MethodHandle setter() { return setter; }
+ *       public AssignableMethodHandle(String get, String set) {
+ *         super(get);
+ *         MethodType getType = this.type();
+ *         MethodType setType = getType.insertParameterType(getType.parameterCount(), getType.returnType()).changeReturnType(void.class);
+ *         this.setter = MethodHandles.publicLookup().bind(this, set, setType);
+ *       }
+ *     }
+ *     // class Main { public static void main(String... av) { ...
+ *     final Number[] stuff = { 123, 456 };
+ *     AssignableMethodHandle stuffPtr = new AssignableMethodHandle("get", "set") {
+ *         public Number get(long i)           { return stuff[(int)i]; }
+ *         public void   set(long i, Object x) {        stuff[(int)i] = x; }
+ *     }
+ *     int x = (Integer) stuffPtr.&lt;Number&gt;invoke(1L);  // 456
+ *     stuffPtr.setter().&lt;void&gt;invoke(0L, (Number) 789);  // replaces 123 with 789
+ * </pre></blockquote>
  * @see MethodHandle
  * @author John Rose, JSR 292 EG
  */
@@ -72,12 +148,87 @@
         // with a JVM change which moves the required hidden behavior onto this class.
         extends sun.dyn.BoundMethodHandle
 {
+    private static final Access IMPL_TOKEN = Access.getToken();
+
     /**
-     * When creating a, pass in {@code entryPoint}, any method handle which
-     * can take the current object
-     * @param entryPoint
+     * When creating a {@code JavaMethodHandle}, the actual method handle
+     * invocation behavior will be delegated to the specified {@code entryPoint}.
+     * This may be any method handle which can take the newly constructed object
+     * as a leading parameter.
+     * <p>
+     * The method handle type of {@code this} (i.e, the fully constructed object)
+     * will be {@code entryPoint}, minus the leading argument.
+     * The leading argument will be bound to {@code this} on every method
+     * handle invocation.
+     * @param entryPoint the method handle to handle calls
      */
     protected JavaMethodHandle(MethodHandle entryPoint) {
-        super(entryPoint, 0);
+        super(entryPoint);
+    }
+
+    /**
+     * Create a method handle whose entry point is a non-static method
+     * visible in the exact (most specific) class of
+     * the newly constructed object.
+     * <p>
+     * The method is specified by name and type, as if via this expression:
+     * {@code MethodHandles.lookup().findVirtual(this.getClass(), name, type)}.
+     * The class defining the method might be an anonymous inner class.
+     * <p>
+     * The method handle type of {@code this} (i.e, the fully constructed object)
+     * will be the given method handle type.
+     * A call to {@code this} will invoke the selected method.
+     * The receiver argument will be bound to {@code this} on every method
+     * handle invocation.
+     * <p>
+     * <i>Rationale:</i>
+     * Although this constructor may seem to be a mere luxury,
+     * it is not subsumed by the more general constructor which
+     * takes any {@code MethodHandle} as the entry point argument.
+     * In order to convert an entry point name to a method handle,
+     * the self-class of the object is required (in order to do
+     * the lookup).  The self-class, in turn, is generally not
+     * available at the time of the constructor invocation,
+     * due to the rules of Java and the JVM verifier.
+     * One cannot call {@code this.getClass()}, because
+     * the value of {@code this} is inaccessible at the point
+     * of the constructor call.  (Changing this would require
+     * change to the Java language, verifiers, and compilers.)
+     * In particular, this constructor allows {@code JavaMethodHandle}s
+     * to be created in combination with the anonymous inner class syntax.
+     * @param entryPointName the name of the entry point method
+     * @param type (optional) the desired type of the method handle
+     */
+    protected JavaMethodHandle(String entryPointName, MethodType type) {
+        super(entryPointName, type, true);
+
+    }
+
+    /**
+     * Create a method handle whose entry point is a non-static method
+     * visible in the exact (most specific) class of
+     * the newly constructed object.
+     * <p>
+     * The method is specified only by name.
+     * There must be exactly one method of that name visible in the object class,
+     * either inherited or locally declared.
+     * (That is, the method must not be overloaded.)
+     * <p>
+     * The method handle type of {@code this} (i.e, the fully constructed object)
+     * will be the same as the type of the selected non-static method.
+     * The receiver argument will be bound to {@code this} on every method
+     * handle invocation.
+     * <p>ISSUE: This signature wildcarding feature does not correspond to
+     * any MethodHandles.Lookup API element.  Can we eliminate it?
+     * Alternatively, it is useful for naming non-overloaded methods.
+     * Shall we make type arguments optional in the Lookup methods,
+     * throwing an error in cases of ambiguity?
+     * <p>
+     * For this method's rationale, see the documentation
+     * for {@link #JavaMethodHandle(String,MethodType)}.
+     * @param entryPointName the name of the entry point method
+     */
+    protected JavaMethodHandle(String entryPointName) {
+        super(entryPointName, (MethodType) null, false);
     }
 }

--- a/jdk/src/share/classes/java/dyn/Linkage.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/java/dyn/Linkage.java	Thu Jan 07 16:16:45 2010 -0800
@@ -25,7 +25,9 @@
 
 package java.dyn;
 
+import java.dyn.MethodHandles.Lookup;
 import java.util.WeakHashMap;
+import sun.dyn.Access;
 import sun.reflect.Reflection;
 import static sun.dyn.util.VerifyAccess.checkBootstrapPrivilege;
 
@@ -34,6 +36,8 @@
  * @author John Rose, JSR 292 EG
  */
 public class Linkage {
+    private static final Access IMPL_TOKEN = Access.getToken();
+
     private Linkage() {}  // do not instantiate
 
     /**
@@ -53,19 +57,23 @@
      *     call to this method.
      * <li>The given class is already fully initialized.
      * <li>The given class is in the process of initialization, in another thread.
+     * <li>The same {@code CallSite} object has already been returned from
+     * a bootstrap method call to another {@code invokedynamic} call site.
      * </ul>
      * Because of these rules, a class may install its own bootstrap method in
      * a static initializer.
+     * @param callerClass a class that may have {@code invokedynamic} sites
+     * @param bootstrapMethod the method to use to bootstrap all such sites
      */
     public static
-    void registerBootstrapMethod(Class callerClass, MethodHandle mh) {
+    void registerBootstrapMethod(Class callerClass, MethodHandle bootstrapMethod) {
         Class callc = Reflection.getCallerClass(2);
         checkBootstrapPrivilege(callc, callerClass, "registerBootstrapMethod");
-        checkBSM(mh);
+        checkBSM(bootstrapMethod);
         synchronized (bootstrapMethods) {
             if (bootstrapMethods.containsKey(callerClass))
                 throw new IllegalStateException("bootstrap method already declared in "+callerClass);
-            bootstrapMethods.put(callerClass, mh);
+            bootstrapMethods.put(callerClass, bootstrapMethod);
         }
     }
 
@@ -88,8 +96,9 @@
     public static
     void registerBootstrapMethod(Class<?> runtime, String name) {
         Class callc = Reflection.getCallerClass(2);
+        Lookup lookup = new Lookup(IMPL_TOKEN, callc);
         MethodHandle bootstrapMethod =
-            MethodHandles.findStaticFrom(callc, runtime, name, BOOTSTRAP_METHOD_TYPE);
+            lookup.findStatic(runtime, name, BOOTSTRAP_METHOD_TYPE);
         // FIXME: exception processing wrong here
         checkBSM(bootstrapMethod);
         Linkage.registerBootstrapMethod(callc, bootstrapMethod);
@@ -106,8 +115,9 @@
     public static
     void registerBootstrapMethod(String name) {
         Class callc = Reflection.getCallerClass(2);
+        Lookup lookup = new Lookup(IMPL_TOKEN, callc);
         MethodHandle bootstrapMethod =
-            MethodHandles.findStaticFrom(callc, callc, name, BOOTSTRAP_METHOD_TYPE);
+            lookup.findStatic(callc, name, BOOTSTRAP_METHOD_TYPE);
         // FIXME: exception processing wrong here
         checkBSM(bootstrapMethod);
         Linkage.registerBootstrapMethod(callc, bootstrapMethod);
@@ -116,8 +126,7 @@
     /**
      * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
      * Report the bootstrap method registered for a given class.
-     * Returns null if the class has never yet registered a bootstrap method,
-     * or if the class has explicitly registered a null bootstrap method.
+     * Returns null if the class has never yet registered a bootstrap method.
      * Only callers privileged to set the bootstrap method may inquire
      * about it, because a bootstrap method is potentially a back-door entry
      * point into its class.
@@ -137,12 +146,12 @@
      * {@code (Class, String, MethodType)} returning a {@code CallSite}.
      */
     public static final MethodType BOOTSTRAP_METHOD_TYPE
-            = MethodType.make(CallSite.class,
-                              Class.class, String.class, MethodType.class);
+            = MethodType.methodType(CallSite.class,
+                                    Class.class, String.class, MethodType.class);
 
     private static final MethodType OLD_BOOTSTRAP_METHOD_TYPE
-            = MethodType.make(Object.class,
-                              CallSite.class, Object[].class);
+            = MethodType.methodType(Object.class,
+                                    CallSite.class, Object[].class);
 
     private static final WeakHashMap<Class, MethodHandle> bootstrapMethods =
             new WeakHashMap<Class, MethodHandle>();
@@ -173,8 +182,8 @@
 
     /**
      * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
-     * Invalidate all <code>invokedynamic</code> call sites associated
-     * with the given class.
+     * Invalidate all <code>invokedynamic</code> call sites in the bytecodes
+     * of any methods of the given class.
      * (These are exactly those sites which report the given class
      * via the {@link CallSite#callerClass()} method.)
      * <p>

--- a/jdk/src/share/classes/java/dyn/LinkagePermission.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/java/dyn/LinkagePermission.java	Thu Jan 07 16:16:45 2010 -0800
@@ -88,7 +88,7 @@
     /**
      * Create a new LinkagePermission with the given name.
      * The name is the symbolic name of the LinkagePermission, such as
-     * "registerBootstrapMethod", "invalidateClass.*", etc. An asterisk
+     * "registerBootstrapMethod", "invalidateCallerClass.*", etc. An asterisk
      * may appear at the end of the name, following a ".", or by itself, to
      * signify a wildcard match.
      *

--- a/jdk/src/share/classes/java/dyn/MethodHandle.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/java/dyn/MethodHandle.java	Thu Jan 07 16:16:45 2010 -0800
@@ -30,6 +30,9 @@
 import sun.dyn.Access;
 import sun.dyn.MethodHandleImpl;
 
+import static java.dyn.MethodHandles.invokers;  // package-private API
+import static sun.dyn.MemberName.newIllegalArgumentException;  // utility
+
 /**
  * A method handle is a typed reference to the entry point of a method.
  * <p>
@@ -45,8 +48,9 @@
  * Every method handle appears as an object containing a method named
  * <code>invoke</code>, whose signature exactly matches
  * the method handle's type.
- * A normal Java method call (using the <code>invokevirtual</code> instruction)
- * can invoke this method from Java source code (if language support is present).
+ * A Java method call expression, which compiles to an
+ * <code>invokevirtual</code> instruction,
+ * can invoke this method from Java source code.
  * <p>
  * Every call to a method handle specifies an intended method type,
  * which must exactly match the type of the method handle.
@@ -57,6 +61,10 @@
  * The call fails with a {@link WrongMethodTypeException}
  * if the method does not exist, even if there is an <code>invoke</code>
  * method of a closely similar signature.
+ * As with other kinds
+ * of methods in the JVM, signature matching during method linkage
+ * is exact, and does not allow for language-level implicit conversions
+ * such as {@code String} to {@code Object} or {@code short} to {@code int}.
  * <p>
  * A method handle is an unrestricted capability to call a method.
  * A method handle can be formed on a non-public method by a class
@@ -74,6 +82,15 @@
  * (after resolving symbolic type names) must exactly match the method type
  * of the target method.
  * <p>
+ * Every <code>invoke</code> method always throws {@link Exception},
+ * which is to say that there is no static restriction on what a method handle
+ * can throw.  Since the JVM does not distinguish between checked
+ * and unchecked exceptions (other than by their class, of course),
+ * there is no particular effect on bytecode shape from ascribing
+ * checked exceptions to method handle invocations.  But in Java source
+ * code, methods which perform method handle calls must either explicitly
+ * throw {@code Exception}, or else must catch all checked exceptions locally.
+ * <p>
  * Bytecode in an extended JVM can directly obtain a method handle
  * for any accessible method from a <code>ldc</code> instruction
  * which refers to a <code>CONSTANT_Methodref</code> or
@@ -97,6 +114,59 @@
  * can also be created.  These do not perform virtual lookup based on
  * receiver type.  Such a method handle simulates the effect of
  * an <code>invokespecial</code> instruction to the same method.
+ * <p>
+ * Here are some examples of usage:
+ * <p><blockquote><pre>
+ * Object x, y; String s; int i;
+ * MethodType mt; MethodHandle mh;
+ * MethodHandles.Lookup lookup = MethodHandles.lookup();
+ * // mt is {(char,char) =&gt; String}
+ * mt = MethodType.make(String.class, char.class, char.class);
+ * mh = lookup.findVirtual(String.class, "replace", mt);
+ * // (Ljava/lang/String;CC)Ljava/lang/String;
+ * s = mh.&lt;String&gt;invoke("daddy",'d','n');
+ * assert(s.equals("nanny"));
+ * // weakly typed invocation (using MHs.invoke)
+ * s = (String) MethodHandles.invoke(mh, "sappy", 'p', 'v');
+ * assert(s.equals("savvy"));
+ * // mt is {Object[] =&gt; List}
+ * mt = MethodType.make(java.util.List.class, Object[].class);
+ * mh = lookup.findStatic(java.util.Arrays.class, "asList", mt);
+ * // mt is {(Object,Object,Object) =&gt; Object}
+ * mt = MethodType.makeGeneric(3);
+ * mh = MethodHandles.collectArguments(mh, mt);
+ * // mt is {(Object,Object,Object) =&gt; Object}
+ * // (Ljava/lang/Object;Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;
+ * x = mh.invoke((Object)1, (Object)2, (Object)3);
+ * assert(x.equals(java.util.Arrays.asList(1,2,3)));
+ * // mt is { =&gt; int}
+ * mt = MethodType.make(int.class);
+ * mh = lookup.findVirtual(java.util.List.class, "size", mt);
+ * // (Ljava/util/List;)I
+ * i = mh.&lt;int&gt;invoke(java.util.Arrays.asList(1,2,3));
+ * assert(i == 3);
+ * </pre></blockquote>
+ * Each of the above calls generates a single invokevirtual instruction
+ * with the name {@code invoke} and the type descriptors indicated in the comments.
+ * The argument types are taken directly from the actual arguments,
+ * while the return type is taken from the type parameter.
+ * (This type parameter may be a primitive, and it defaults to {@code Object}.)
+ * <p>
+ * <em>A note on generic typing:</em>  Method handles do not represent
+ * their function types in terms of Java parameterized (generic) types,
+ * because there are three mismatches between function types and parameterized
+ * Java types.
+ * <ol>
+ * <li>Method types range over all possible arities,
+ * from no arguments to an arbitrary number of arguments.
+ * Generics are not variadic, and so cannot represent this.</li>
+ * <li>Method types can specify arguments of primitive types,
+ * which Java generic types cannot range over.</li>
+ * <li>Higher order functions over method handles (combinators) are
+ * often generic across a wide range of function types, including
+ * those of multiple arities.  It is impossible to represent such
+ * genericity with a Java type parameter.</li>
+ * </ol>
  *
  * @see MethodType
  * @see MethodHandles
@@ -107,17 +177,19 @@
         // with a JVM change which moves the required hidden state onto this class.
         extends MethodHandleImpl
 {
-    // interface MethodHandle<T extends MethodType<R,A...>>
-    // { T type(); <R,A...> public R invoke(A...); }
+    private static Access IMPL_TOKEN = Access.getToken();
 
-    final private MethodType type;
+    // interface MethodHandle<R throws X extends Exception,A...>
+    // { MethodType<R throws X,A...> type(); public R invoke(A...) throws X; }
+
+    private MethodType type;
 
     /**
      * Report the type of this method handle.
      * Every invocation of this method handle must exactly match this type.
      * @return the method handle type
      */
-    public MethodType type() {
+    public final MethodType type() {
         return type;
     }
 
@@ -130,6 +202,369 @@
      */
     protected MethodHandle(Access token, MethodType type) {
         super(token);
+        Access.check(token);
+        this.type = type;
+    }
+
+    private void initType(MethodType type) {
+        type.getClass();  // elicit NPE
+        if (this.type != null)  throw new InternalError();
         this.type = type;
     }
+
+    static {
+        // This hack allows the implementation package special access to
+        // the internals of MethodHandle.  In particular, the MTImpl has all sorts
+        // of cached information useful to the implementation code.
+        MethodHandleImpl.setMethodHandleFriend(IMPL_TOKEN, new MethodHandleImpl.MethodHandleFriend() {
+            public void initType(MethodHandle mh, MethodType type) { mh.initType(type); }
+        });
+    }
+
+    /** The string of a direct method handle is the simple name of its target method.
+     * The string of an adapter or bound method handle is the string of its
+     * target method handle.
+     * The string of a Java method handle is the string of its entry point method,
+     * unless the Java method handle overrides the toString method.
+     */
+    @Override
+    public String toString() {
+        return MethodHandleImpl.getNameString(IMPL_TOKEN, this);
+    }
+
+    //// First draft of the "Method Handle Kernel API" discussed at the JVM Language Summit, 9/2009.
+    //// Implementations here currently delegate to statics in MethodHandles.  Some of those statics
+    //// will be deprecated.  Others will be kept as "algorithms" to supply degrees of freedom
+    //// not present in the Kernel API.
+
+    /**
+     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
+     * Perform an exact invocation.  The signature at the call site of {@code invokeExact} must
+     * exactly match this method handle's {@code type}.
+     * No conversions are allowed on arguments or return values.
+     * <em>This is not yet implemented, pending required compiler and JVM support.</em>
+     */
+    public final <T> T invokeExact(Object... arguments) throws Throwable {
+        // This is an approximate implementation, which discards the caller's signature and refuses the call.
+        throw new InternalError("not yet implemented");
+    }
+
+    /**
+     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
+     * Perform a generic invocation.  The signature at the call site of {@code invokeExact} must
+     * have the same arity as this method handle's {@code type}.
+     * The same conversions are allowed on arguments or return values as are supported by
+     * by {@link MethodHandles#convertArguments}.
+     * If the call site signature exactly matches this method handle's {@code type},
+     * the call proceeds as if by {@link #invokeExact}.
+     * <em>This is not fully implemented, pending required compiler and JVM support.</em>
+     */
+    // This is an approximate implementation, which discards the caller's signature.
+    // When it is made signature polymorphic, the overloadings will disappear.
+    public final <T> T invokeGeneric() throws Throwable {
+        MethodHandle invoker = invokers(this.type()).genericInvoker();
+        return invoker.<T>invoke(this);
+    }
+    public final <T> T invokeGeneric(Object a0) throws Throwable {
+        MethodHandle invoker = invokers(this.type()).genericInvoker();
+        return invoker.<T>invoke(this, a0);
+    }
+    public final <T> T invokeGeneric(Object a0, Object a1) throws Throwable {
+        MethodHandle invoker = invokers(this.type()).genericInvoker();
+        return invoker.<T>invoke(this, a0, a1);
+    }
+    public final <T> T invokeGeneric(Object a0, Object a1, Object a2) throws Throwable {
+        MethodHandle invoker = invokers(this.type()).genericInvoker();
+        return invoker.<T>invoke(this, a0, a1, a2);
+    }
+    public final <T> T invokeGeneric(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+        MethodHandle invoker = invokers(this.type()).genericInvoker();
+        return invoker.<T>invoke(this, a0, a1, a2, a3);
+    }
+    public final <T> T invokeGeneric(Object a0, Object a1, Object a2, Object a3,
+                  Object a4) throws Throwable {
+        MethodHandle invoker = invokers(this.type()).genericInvoker();
+        return invoker.<T>invoke(this, a0, a1, a2, a3, a4);
+    }
+    public final <T> T invokeGeneric(Object a0, Object a1, Object a2, Object a3,
+                  Object a4, Object a5) throws Throwable {
+        MethodHandle invoker = invokers(this.type()).genericInvoker();
+        return invoker.<T>invoke(this, a0, a1, a2, a3, a4, a5);
+    }
+    public final <T> T invokeGeneric(Object a0, Object a1, Object a2, Object a3,
+                  Object a4, Object a5, Object a6) throws Throwable {
+        MethodHandle invoker = invokers(this.type()).genericInvoker();
+        return invoker.<T>invoke(this, a0, a1, a2, a3, a4, a5, a6);
+    }
+    public final <T> T invokeGeneric(Object a0, Object a1, Object a2, Object a3,
+                  Object a4, Object a5, Object a6, Object a7) throws Throwable {
+        MethodHandle invoker = invokers(this.type()).genericInvoker();
+        return invoker.<T>invoke(this, a0, a1, a2, a3, a4, a5, a6, a7);
+    }
+    public final <T> T invokeGeneric(Object a0, Object a1, Object a2, Object a3,
+                  Object a4, Object a5, Object a6, Object a7, Object a8) throws Throwable {
+        MethodHandle invoker = invokers(this.type()).genericInvoker();
+        return invoker.<T>invoke(this, a0, a1, a2, a3, a4, a5, a6, a7, a8);
+    }
+    public final <T> T invokeGeneric(Object a0, Object a1, Object a2, Object a3,
+                  Object a4, Object a5, Object a6, Object a7, Object a8, Object a9) throws Throwable {
+        MethodHandle invoker = invokers(this.type()).genericInvoker();
+        return invoker.<T>invoke(this, a0, a1, a2, a3, a4, a5, a6, a7, a8, a9);
+    }
+
+    /**
+     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
+     * Perform a varargs invocation, passing the arguments in the given array
+     * to the method handle, as if via {@link #invokeGeneric} from a call site
+     * which mentions only the type {@code Object}, and whose arity is the length
+     * of the argument array.
+     * <p>
+     * The length of the arguments array must equal the parameter count
+     * of the target's type.
+     * The arguments array is spread into separate arguments.
+     * <p>
+     * In order to match the type of the target, the following argument
+     * conversions are applied as necessary:
+     * <ul>
+     * <li>reference casting
+     * <li>unboxing
+     * </ul>
+     * The following conversions are not applied:
+     * <ul>
+     * <li>primitive conversions (e.g., {@code byte} to {@code int}
+     * <li>varargs conversions other than the initial spread
+     * <li>any application-specific conversions (e.g., string to number)
+     * </ul>
+     * The result returned by the call is boxed if it is a primitive,
+     * or forced to null if the return type is void.
+     * <p>
+     * This call is equivalent to the following code:
+     * <p><blockquote><pre>
+     *   MethodHandle invoker = MethodHandles.genericInvoker(this.type(), 0, true);
+     *   Object result = invoker.invoke(this, arguments);
+     * </pre></blockquote>
+     * @param arguments the arguments to pass to the target
+     * @return the result returned by the target
+     * @see MethodHandles#genericInvoker
+     */
+    public final Object invokeVarargs(Object[] arguments) throws Throwable {
+        int argc = arguments == null ? 0 : arguments.length;
+        MethodType type = type();
+        if (argc <= 10) {
+            MethodHandle invoker = MethodHandles.invokers(type).genericInvoker();
+            switch (argc) {
+                case 0:  return invoker.invoke(this);
+                case 1:  return invoker.invoke(this,
+                                    arguments[0]);
+                case 2:  return invoker.invoke(this,
+                                    arguments[0], arguments[1]);
+                case 3:  return invoker.invoke(this,
+                                    arguments[0], arguments[1], arguments[2]);
+                case 4:  return invoker.invoke(this,
+                                    arguments[0], arguments[1], arguments[2],
+                                    arguments[3]);
+                case 5:  return invoker.invoke(this,
+                                    arguments[0], arguments[1], arguments[2],
+                                    arguments[3], arguments[4]);
+                case 6:  return invoker.invoke(this,
+                                    arguments[0], arguments[1], arguments[2],
+                                    arguments[3], arguments[4], arguments[5]);
+                case 7:  return invoker.invoke(this,
+                                    arguments[0], arguments[1], arguments[2],
+                                    arguments[3], arguments[4], arguments[5],
+                                    arguments[6]);
+                case 8:  return invoker.invoke(this,
+                                    arguments[0], arguments[1], arguments[2],
+                                    arguments[3], arguments[4], arguments[5],
+                                    arguments[6], arguments[7]);
+                case 9:  return invoker.invoke(this,
+                                    arguments[0], arguments[1], arguments[2],
+                                    arguments[3], arguments[4], arguments[5],
+                                    arguments[6], arguments[7], arguments[8]);
+                case 10:  return invoker.invoke(this,
+                                    arguments[0], arguments[1], arguments[2],
+                                    arguments[3], arguments[4], arguments[5],
+                                    arguments[6], arguments[7], arguments[8],
+                                    arguments[9]);
+            }
+        }
+
+        // more than ten arguments get boxed in a varargs list:
+        MethodHandle invoker = MethodHandles.invokers(type).varargsInvoker(0);
+        return invoker.invoke(this, arguments);
+    }
+    /** Equivalent to {@code invokeVarargs(arguments.toArray())}. */
+    public final Object invokeVarargs(java.util.List<?> arguments) throws Throwable {
+        return invokeVarargs(arguments.toArray());
+    }
+
+    /*  --- this is intentionally NOT a javadoc yet ---
+     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
+     * Produce an adapter method handle which adapts the type of the
+     * current method handle to a new type by pairwise argument conversion.
+     * The original type and new type must have the same number of arguments.
+     * The resulting method handle is guaranteed to confess a type
+     * which is equal to the desired new type.
+     * <p>
+     * If the original type and new type are equal, returns {@code this}.
+     * <p>
+     * The following conversions are applied as needed both to
+     * arguments and return types.  Let T0 and T1 be the differing
+     * new and old parameter types (or old and new return types)
+     * for corresponding values passed by the new and old method types.
+     * Given those types T0, T1, one of the following conversions is applied
+     * if possible:
+     * <ul>
+     * <li>If T0 and T1 are references, and T1 is not an interface type,
+     *     then a cast to T1 is applied.
+     *     (The types do not need to be related in any particular way.)
+     * <li>If T0 and T1 are references, and T1 is an interface type,
+     *     then the value of type T0 is passed as a T1 without a cast.
+     *     (This treatment of interfaces follows the usage of the bytecode verifier.)
+     * <li>If T0 and T1 are primitives, then a Java casting
+     *     conversion (JLS 5.5) is applied, if one exists.
+     * <li>If T0 and T1 are primitives and one is boolean,
+     *     the boolean is treated as a one-bit unsigned integer.
+     *     (This treatment follows the usage of the bytecode verifier.)
+     *     A conversion from another primitive type behaves as if
+     *     it first converts to byte, and then masks all but the low bit.
+     * <li>If T0 is a primitive and T1 a reference, a boxing
+     *     conversion is applied if one exists, possibly followed by
+     *     an reference conversion to a superclass.
+     *     T1 must be a wrapper class or a supertype of one.
+     *     If T1 is a wrapper class, T0 is converted if necessary
+     *     to T1's primitive type by one of the preceding conversions.
+     *     Otherwise, T0 is boxed, and its wrapper converted to T1.
+     * <li>If T0 is a reference and T1 a primitive, an unboxing
+     *     conversion is applied if one exists, possibly preceded by
+     *     a reference conversion to a wrapper class.
+     *     T0 must be a wrapper class or a supertype of one.
+     *     If T0 is a wrapper class, its primitive value is converted
+     *     if necessary to T1 by one of the preceding conversions.
+     *     Otherwise, T0 is converted directly to the wrapper type for T1,
+     *     which is then unboxed.
+     * <li>If the return type T1 is void, any returned value is discarded
+     * <li>If the return type T0 is void and T1 a reference, a null value is introduced.
+     * <li>If the return type T0 is void and T1 a primitive, a zero value is introduced.
+     * </ul>
+     * <p>
+     */
+    /**
+     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
+     * Produce an adapter method handle which adapts the type of the
+     * current method handle to a new type by pairwise argument conversion.
+     * The original type and new type must have the same number of arguments.
+     * The resulting method handle is guaranteed to confess a type
+     * which is equal to the desired new type.
+     * <p>
+     * If the original type and new type are equal, returns {@code this}.
+     * <p>
+     * This method is equivalent to {@link MethodHandles#convertArguments}.
+     * @param newType the expected type of the new method handle
+     * @return a method handle which delegates to {@code this} after performing
+     *           any necessary argument conversions, and arranges for any
+     *           necessary return value conversions
+     * @throws IllegalArgumentException if the conversion cannot be made
+     * @see MethodHandles#convertArguments
+     */
+    public final MethodHandle asType(MethodType newType) {
+        return MethodHandles.convertArguments(this, newType);
+    }
+
+    /**
+     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
+     * Produce a method handle which adapts, as its <i>target</i>,
+     * the current method handle.  The type of the adapter will be
+     * the same as the type of the target, except that all but the first
+     * {@code keepPosArgs} parameters of the target's type are replaced
+     * by a single array parameter of type {@code Object[]}.
+     * Thus, if {@code keepPosArgs} is zero, the adapter will take all
+     * arguments in a single object array.
+     * <p>
+     * When called, the adapter replaces a trailing array argument
+     * by the array's elements, each as its own argument to the target.
+     * (The order of the arguments is preserved.)
+     * They are converted pairwise by casting and/or unboxing
+     * (as if by {@link MethodHandles#convertArguments})
+     * to the types of the trailing parameters of the target.
+     * Finally the target is called.
+     * What the target eventually returns is returned unchanged by the adapter.
+     * <p>
+     * Before calling the target, the adapter verifies that the array
+     * contains exactly enough elements to provide a correct argument count
+     * to the target method handle.
+     * (The array may also be null when zero elements are required.)
+     * @param keepPosArgs the number of leading positional arguments to preserve
+     * @return a new method handle which spreads its final argument,
+     *         before calling the original method handle
+     * @throws IllegalArgumentException if target does not have at least
+     *         {@code keepPosArgs} parameter types
+     */
+    public final MethodHandle asSpreader(int keepPosArgs) {
+        MethodType oldType = type();
+        int nargs = oldType.parameterCount();
+        MethodType newType = oldType.dropParameterTypes(keepPosArgs, nargs);
+        newType = newType.insertParameterTypes(keepPosArgs, Object[].class);
+        return MethodHandles.spreadArguments(this, newType);
+    }
+
+    /**
+     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
+     * Produce a method handle which adapts, as its <i>target</i>,
+     * the current method handle.  The type of the adapter will be
+     * the same as the type of the target, except that a single trailing
+     * array parameter of type {@code Object[]} is replaced by
+     * {@code spreadArrayArgs} parameters of type {@code Object}.
+     * <p>
+     * When called, the adapter replaces its trailing {@code spreadArrayArgs}
+     * arguments by a single new {@code Object} array, whose elements
+     * comprise (in order) the replaced arguments.
+     * Finally the target is called.
+     * What the target eventually returns is returned unchanged by the adapter.
+     * <p>
+     * (The array may also be a shared constant when {@code spreadArrayArgs} is zero.)
+     * @param spreadArrayArgs the number of arguments to spread from the trailing array
+     * @return a new method handle which collects some trailing argument
+     *         into an array, before calling the original method handle
+     * @throws IllegalArgumentException if the last argument of the target
+     *         is not {@code Object[]}
+     * @throws IllegalArgumentException if {@code spreadArrayArgs} is not
+     *         a legal array size
+     * @deprecated Provisional and unstable; use {@link MethodHandles#collectArguments}.
+     */
+    public final MethodHandle asCollector(int spreadArrayArgs) {
+        MethodType oldType = type();
+        int nargs = oldType.parameterCount();
+        MethodType newType = oldType.dropParameterTypes(nargs-1, nargs);
+        newType = newType.insertParameterTypes(nargs-1, MethodType.genericMethodType(spreadArrayArgs).parameterArray());
+        return MethodHandles.collectArguments(this, newType);
+    }
+
+    /**
+     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
+     * Produce a method handle which binds the given argument
+     * to the current method handle as <i>target</i>.
+     * The type of the bound handle will be
+     * the same as the type of the target, except that a single leading
+     * reference parameter will be omitted.
+     * <p>
+     * When called, the bound handle inserts the given value {@code x}
+     * as a new leading argument to the target.  The other arguments are
+     * also passed unchanged.
+     * What the target eventually returns is returned unchanged by the bound handle.
+     * <p>
+     * The reference {@code x} must be convertible to the first parameter
+     * type of the target.
+     * @param x  the value to bind to the first argument of the target
+     * @return a new method handle which collects some trailing argument
+     *         into an array, before calling the original method handle
+     * @throws IllegalArgumentException if the target does not have a
+     *         leading parameter type that is a reference type
+     * @throws ClassCastException if {@code x} cannot be converted
+     *         to the leading parameter type of the target
+     * @deprecated Provisional and unstable; use {@link MethodHandles#insertArguments}.
+     */
+    public final MethodHandle bindTo(Object x) {
+        return MethodHandles.insertArguments(this, 0, x);
+    }
 }

--- a/jdk/src/share/classes/java/dyn/MethodHandles.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/java/dyn/MethodHandles.java	Thu Jan 07 16:16:45 2010 -0800
@@ -34,6 +34,7 @@
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
 import java.lang.reflect.Modifier;
+import java.util.List;
 import java.util.ArrayList;
 import java.util.Arrays;
 import sun.dyn.Invokers;
@@ -44,17 +45,14 @@
 
 /**
  * Fundamental operations and utilities for MethodHandle.
+ * They fall into several categories:
+ * <ul>
+ * <li>Reifying methods and fields.  This is subject to access checks.
+ * <li>Invoking method handles on dynamically typed arguments and/or varargs arrays.
+ * <li>Combining or transforming pre-existing method handles into new ones.
+ * <li>Miscellaneous emulation of common JVM operations or control flow patterns.
+ * </ul>
  * <p>
- * <em>API Note:</em>  The matching of method types in this API cannot
- * be completely checked by Java's generic type system for three reasons:
- * <ol>
- * <li>Method types range over all possible arities,
- * from no arguments to an arbitrary number of arguments.
- * Generics are not variadic, and so cannot represent this.</li>
- * <li>Method types can specify arguments of primitive types,
- * which Java generic types cannot range over.</li>
- * <li>Method types can optionally specify varargs (ellipsis).</li>
- * </ol>
  * @author John Rose, JSR 292 EG
  */
 public class MethodHandles {
@@ -68,12 +66,22 @@
 
     //// Method handle creation from ordinary methods.
 
+    /** Create a {@link Lookup} lookup object on the caller.
+     *
+     */
     public static Lookup lookup() {
         return new Lookup();
     }
 
+    /** Version of lookup which is trusted minimally.
+     *  It can only be used to create method handles to
+     *  publicly accessible members.
+     */
+    public static Lookup publicLookup() {
+        return Lookup.PUBLIC_LOOKUP;
+    }
+
     /**
-     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
      * A factory object for creating method handles, when the creation
      * requires access checking.  Method handles do not perform
      * access checks when they are called; this is a major difference
@@ -121,7 +129,8 @@
         /** Which class is performing the lookup?  It is this class against
          *  which checks are performed for visibility and access permissions.
          *  <p>
-         *  This value is null if and only if this lookup is {@link #PUBLIC_LOOKUP}.
+         *  This value is null if and only if this lookup was produced
+         *  by {@link MethodHandles#publicLookup}.
          */
         public Class<?> lookupClass() {
             return lookupClass;
@@ -135,23 +144,46 @@
          * an access$N method.
          */
         Lookup() {
-            Class caller = getCallerClassAtEntryPoint();
-            // make sure we haven't accidentally picked up this class:
-            checkUnprivilegedlookupClass(caller);
-            this.lookupClass = caller;
+            this(IMPL_TOKEN, getCallerClassAtEntryPoint());
+        }
+
+        Lookup(Access token, Class<?> lookupClass) {
+            // make sure we haven't accidentally picked up a privileged class:
+            checkUnprivilegedlookupClass(lookupClass);
+            this.lookupClass = lookupClass;
+        }
+
+        /**
+         * Create a lookup on the specified class.
+         * The result is guaranteed to have no more access privileges
+         * than the original.
+         */
+        public Lookup in(Class<?> newLookupClass) {
+            if (this == PUBLIC_LOOKUP)  return PUBLIC_LOOKUP;
+            if (newLookupClass == null)  return PUBLIC_LOOKUP;
+            if (newLookupClass == lookupClass)  return this;
+            if (this != IMPL_LOOKUP) {
+                if (!VerifyAccess.isSamePackage(lookupClass, newLookupClass))
+                    throw newNoAccessException(new MemberName(newLookupClass), this);
+                checkUnprivilegedlookupClass(newLookupClass);
+            }
+            return new Lookup(newLookupClass);
         }
 
         private Lookup(Class<?> lookupClass) {
             this.lookupClass = lookupClass;
         }
 
+        // Make sure outer class is initialized first.
+        static { IMPL_TOKEN.getClass(); }
+
         private static final Class<?> PUBLIC_ONLY = sun.dyn.empty.Empty.class;
 
         /** Version of lookup which is trusted minimally.
          *  It can only be used to create method handles to
          *  publicly accessible members.
          */
-        public static final Lookup PUBLIC_LOOKUP = new Lookup(PUBLIC_ONLY);
+        static final Lookup PUBLIC_LOOKUP = new Lookup(PUBLIC_ONLY);
 
         /** Package-private version of lookup which is trusted. */
         static final Lookup IMPL_LOOKUP = new Lookup(null);
@@ -178,12 +210,16 @@
             // 0: Reflection.getCC, 1: getCallerClassAtEntryPoint,
             // 2: Lookup.<init>, 3: MethodHandles.*, 4: caller
             // Note:  This should be the only use of getCallerClass in this file.
+            assert(Reflection.getCallerClass(CALLER_DEPTH-1) == MethodHandles.class);
             return Reflection.getCallerClass(CALLER_DEPTH);
         }
 
         /**
          * Produce a method handle for a static method.
          * The type of the method handle will be that of the method.
+         * (Since static methods do not take receivers, there is no
+         * additional receiver argument inserted into the method handle type,
+         * as there would be with {@linkplain #findVirtual} or {@linkplain #findSpecial}.)
          * The method and all its argument types must be accessible to the lookup class.
          * If the method's class has not yet been initialized, that is done
          * immediately, before the method handle is returned.
@@ -196,10 +232,11 @@
          */
         public
         MethodHandle findStatic(Class<?> defc, String name, MethodType type) throws NoAccessException {
-            MemberName method = IMPL_NAMES.resolveOrFail(new MemberName(defc, name, type, Modifier.STATIC), true, lookupClass);
-            checkStatic(true, method, lookupClass);
+            MemberName method = IMPL_NAMES.resolveOrFail(new MemberName(defc, name, type, Modifier.STATIC), true, lookupClass());
+            VerifyAccess.checkName(method, this);
+            checkStatic(true, method, this);
             //throw NoSuchMethodException
-            return MethodHandleImpl.findMethod(IMPL_TOKEN, method, false, lookupClass);
+            return MethodHandleImpl.findMethod(IMPL_TOKEN, method, false, lookupClass());
         }
 
         /**
@@ -228,9 +265,10 @@
          * @exception NoAccessException if the method does not exist or access checking fails
          */
         public MethodHandle findVirtual(Class<?> defc, String name, MethodType type) throws NoAccessException {
-            MemberName method = IMPL_NAMES.resolveOrFail(new MemberName(defc, name, type), true, lookupClass);
-            checkStatic(false, method, lookupClass);
-            return MethodHandleImpl.findMethod(IMPL_TOKEN, method, true, lookupClass);
+            MemberName method = IMPL_NAMES.resolveOrFail(new MemberName(defc, name, type), true, lookupClass());
+            VerifyAccess.checkName(method, this);
+            checkStatic(false, method, this);
+            return MethodHandleImpl.findMethod(IMPL_TOKEN, method, true, lookupClass());
         }
 
         /**
@@ -259,15 +297,17 @@
          */
         public MethodHandle findSpecial(Class<?> defc, String name, MethodType type,
                                         Class<?> specialCaller) throws NoAccessException {
-            checkSpecialCaller(specialCaller, lookupClass);
-            MemberName method = IMPL_NAMES.resolveOrFail(new MemberName(defc, name, type), false, specialCaller);
-            checkStatic(false, method, lookupClass);
+            checkSpecialCaller(specialCaller, this);
+            Lookup slookup = this.in(specialCaller);
+            MemberName method = IMPL_NAMES.resolveOrFail(new MemberName(defc, name, type), false, slookup.lookupClass());
+            VerifyAccess.checkName(method, this);
+            checkStatic(false, method, this);
             if (name.equals("<init>")) {
                 throw newNoAccessException("cannot directly invoke a constructor", method, null);
             } else if (defc.isInterface() || !defc.isAssignableFrom(specialCaller)) {
-                throw newNoAccessException("method must be in a superclass of lookup class", method, lookupClass);
+                throw newNoAccessException("method must be in a superclass of lookup class", method, slookup.lookupClass());
             }
-            return MethodHandleImpl.findMethod(IMPL_TOKEN, method, false, specialCaller);
+            return MethodHandleImpl.findMethod(IMPL_TOKEN, method, false, slookup.lookupClass());
         }
 
         /**
@@ -275,13 +315,19 @@
          * The receiver must have a supertype {@code defc} in which a method
          * of the given name and type is accessible to the lookup class.
          * The method and all its argument types must be accessible to the lookup class.
-         * The type of the method handle will be that of the method.
-         * The given receiver will be bound into the method handle.
+         * The type of the method handle will be that of the method,
+         * without any insertion of an additional receiver parameter.
+         * The given receiver will be bound into the method handle,
+         * so that every call to the method handle will invoke the
+         * requested method on the given receiver.
          * <p>
-         * Equivalent to the following expression:
+         * This is equivalent to the following expression:
          * <code>
-         * {@link #insertArgument}({@link #findVirtual}(defc, name, type), receiver)
+         * {@link #insertArguments}({@link #findVirtual}(defc, name, type), receiver)
          * </code>
+         * where {@code defc} is either {@code receiver.getClass()} or a super
+         * type of that class, in which the requested method is accessible
+         * to the lookup class.
          * @param receiver the object from which the method is accessed
          * @param name the name of the method
          * @param type the type of the method, with the receiver argument omitted
@@ -292,16 +338,18 @@
         public MethodHandle bind(Object receiver, String name, MethodType type) throws NoAccessException {
             Class<? extends Object> rcvc = receiver.getClass(); // may get NPE
             MemberName reference = new MemberName(rcvc, name, type);
-            MemberName method = IMPL_NAMES.resolveOrFail(reference, true, lookupClass);
-            checkStatic(false, method, lookupClass);
-            MethodHandle dmh = MethodHandleImpl.findMethod(IMPL_TOKEN, method, true, lookupClass);
+            MemberName method = IMPL_NAMES.resolveOrFail(reference, true, lookupClass());
+            VerifyAccess.checkName(method, this);
+            checkStatic(false, method, this);
+            MethodHandle dmh = MethodHandleImpl.findMethod(IMPL_TOKEN, method, true, lookupClass());
             MethodHandle bmh = MethodHandleImpl.bindReceiver(IMPL_TOKEN, dmh, receiver);
             if (bmh == null)
-                throw newNoAccessException(method, lookupClass);
+                throw newNoAccessException(method, this);
             return bmh;
         }
 
         /**
+         * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
          * Make a direct method handle to <i>m</i>, if the lookup class has permission.
          * If <i>m</i> is non-static, the receiver argument is treated as an initial argument.
          * If <i>m</i> is virtual, overriding is respected on every call.
@@ -316,10 +364,11 @@
          * @exception NoAccessException if access checking fails
          */
         public MethodHandle unreflect(Method m) throws NoAccessException {
-            return unreflectImpl(new MemberName(m), m.isAccessible(), true, lookupClass);
+            return unreflectImpl(new MemberName(m), m.isAccessible(), true, false, this);
         }
 
         /**
+         * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
          * Produce a method handle for a reflected method.
          * It will bypass checks for overriding methods on the receiver,
          * as if by the {@code invokespecial} instruction.
@@ -333,37 +382,41 @@
          * @exception NoAccessException if access checking fails
          */
         public MethodHandle unreflectSpecial(Method m, Class<?> specialCaller) throws NoAccessException {
-            checkSpecialCaller(specialCaller, lookupClass);
+            checkSpecialCaller(specialCaller, this);
+            Lookup slookup = this.in(specialCaller);
             MemberName mname = new MemberName(m);
-            checkStatic(false, mname, lookupClass);
-            return unreflectImpl(mname, m.isAccessible(), false, specialCaller);
+            checkStatic(false, mname, this);
+            return unreflectImpl(mname, m.isAccessible(), false, false, slookup);
         }
 
         /**
+         * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
          * Produce a method handle for a reflected constructor.
-         * The type of the method handle will be that of the constructor.
+         * The type of the method handle will be that of the constructor,
+         * with the return type changed to the declaring class.
          * The method handle will perform a {@code newInstance} operation,
          * creating a new instance of the constructor's class on the
          * arguments passed to the method handle.
          * <p>
          * If the constructor's {@code accessible} flag is not set,
-         * access checking is performed immediately on behalf of the lookup class,
-         * as if {@code invokespecial} instruction were being linked.
+         * access checking is performed immediately on behalf of the lookup class.
          * @param ctor the reflected constructor
          * @return a method handle which can invoke the reflected constructor
          * @exception NoAccessException if access checking fails
          */
         public MethodHandle unreflectConstructor(Constructor ctor) throws NoAccessException {
             MemberName m = new MemberName(ctor);
-            return unreflectImpl(m, ctor.isAccessible(), false, lookupClass);
+            return unreflectImpl(m, ctor.isAccessible(), false, false, this);
         }
 
         /**
          * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
          * Produce a method handle giving read access to a reflected field.
          * The type of the method handle will have a return type of the field's
-         * value type.  Its sole argument will be the field's containing class
-         * (but only if it is non-static).
+         * value type.
+         * If the field is static, the method handle will take no arguments.
+         * Otherwise, its single argument will be the instance containing
+         * the field.
          * If the method's {@code accessible} flag is not set,
          * access checking is performed immediately on behalf of the lookup class.
          * @param f the reflected field
@@ -371,16 +424,18 @@
          * @exception NoAccessException if access checking fails
          */
         public MethodHandle unreflectGetter(Field f) throws NoAccessException {
-            return MethodHandleImpl.accessField(IMPL_TOKEN, new MemberName(f), false, lookupClass);
+            MemberName m = new MemberName(f);
+            return unreflectImpl(m, f.isAccessible(), false, false, this);
         }
 
         /**
          * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
          * Produce a method handle giving write access to a reflected field.
          * The type of the method handle will have a void return type.
-         * Its last argument will be the field's value type.
-         * Its other argument will be the field's containing class
-         * (but only if it is non-static).
+         * If the field is static, the method handle will take a single
+         * argument, of the field's value type, the value to be stored.
+         * Otherwise, the two arguments will be the instance containing
+         * the field, and the value to be stored.
          * If the method's {@code accessible} flag is not set,
          * access checking is performed immediately on behalf of the lookup class.
          * @param f the reflected field
@@ -388,59 +443,75 @@
          * @exception NoAccessException if access checking fails
          */
         public MethodHandle unreflectSetter(Field f) throws NoAccessException {
-            return MethodHandleImpl.accessField(IMPL_TOKEN, new MemberName(f), true, lookupClass);
+            MemberName m = new MemberName(f);
+            return unreflectImpl(m, f.isAccessible(), false, true, this);
         }
 
     }
 
     static /*must not be public*/
-    MethodHandle findStaticFrom(Class<?> lookupClass,
+    MethodHandle findStaticFrom(Lookup lookup,
                                 Class<?> defc, String name, MethodType type) throws NoAccessException {
-        MemberName method = IMPL_NAMES.resolveOrFail(new MemberName(defc, name, type, Modifier.STATIC), true, lookupClass);
-        checkStatic(true, method, lookupClass);
-        return MethodHandleImpl.findMethod(IMPL_TOKEN, method, false, lookupClass);
+        MemberName method = IMPL_NAMES.resolveOrFail(new MemberName(defc, name, type, Modifier.STATIC), true, lookup.lookupClass());
+        VerifyAccess.checkName(method, lookup);
+        checkStatic(true, method, lookup);
+        return MethodHandleImpl.findMethod(IMPL_TOKEN, method, false, lookup.lookupClass());
     }
 
-    static void checkStatic(boolean wantStatic, MemberName m, Class<?> lookupClass) {
+    static void checkStatic(boolean wantStatic, MemberName m, Lookup lookup) {
         if (wantStatic != m.isStatic()) {
             String message = wantStatic ? "expected a static method" : "expected a non-static method";
-            throw newNoAccessException(message, m, lookupClass);
+            throw newNoAccessException(message, m, lookup.lookupClass());
         }
     }
 
-    static void checkSpecialCaller(Class<?> specialCaller, Class<?> lookupClass) {
-        if (lookupClass == Lookup.IMPL_LOOKUP.lookupClass())
+    static void checkSpecialCaller(Class<?> specialCaller, Lookup lookup) {
+        if (lookup == Lookup.IMPL_LOOKUP)
             return;  // privileged action
-        if (lookupClass == null ||  // public-only access
-            !VerifyAccess.isSamePackageMember(specialCaller, lookupClass))
-            throw newNoAccessException("no private access", new MemberName(specialCaller), lookupClass);
+        assert(lookup.lookupClass() != null);
+        if (!VerifyAccess.isSamePackageMember(specialCaller, lookup.lookupClass()))
+            throw newNoAccessException("no private access", new MemberName(specialCaller), lookup.lookupClass());
     }
 
     // Helper for creating handles on reflected methods and constructors.
     static MethodHandle unreflectImpl(MemberName m, boolean isAccessible,
-                                      boolean doDispatch, Class<?> lookupClass) {
-        MethodType mtype = m.getInvocationType();
+                                      boolean doDispatch, boolean isSetter, Lookup lookup) {
+        MethodType narrowMethodType = null;
         Class<?> defc = m.getDeclaringClass();
+        boolean isSpecialInvoke = m.isInvocable() && !doDispatch;
         int mods = m.getModifiers();
         if (m.isStatic()) {
             if (!isAccessible &&
-                    VerifyAccess.isAccessible(defc, mods, false, lookupClass) == null)
-                throw newNoAccessException(m, lookupClass);
+                    VerifyAccess.isAccessible(defc, mods, lookup.lookupClass(), false) == null)
+                throw newNoAccessException(m, lookup);
         } else {
             Class<?> constraint;
             if (isAccessible) {
                 // abbreviated access check for "unlocked" method
-                constraint = doDispatch ? defc : lookupClass;
+                constraint = doDispatch ? defc : lookup.lookupClass();
             } else {
-                constraint = VerifyAccess.isAccessible(defc, mods, doDispatch, lookupClass);
+                constraint = VerifyAccess.isAccessible(defc, mods, lookup.lookupClass(), isSpecialInvoke);
+            }
+            if (constraint == null) {
+                throw newNoAccessException(m, lookup);
             }
             if (constraint != defc && !constraint.isAssignableFrom(defc)) {
                 if (!defc.isAssignableFrom(constraint))
-                    throw newNoAccessException("receiver must be in caller class", m, lookupClass);
-                mtype = mtype.changeParameterType(0, constraint);
+                    throw newNoAccessException("receiver must be in caller class", m, lookup.lookupClass());
+                if (m.isInvocable())
+                    narrowMethodType = m.getInvocationType().changeParameterType(0, constraint);
+                else if (m.isField())
+                    narrowMethodType = (!isSetter
+                                        ? MethodType.methodType(m.getFieldType(), constraint)
+                                        : MethodType.methodType(void.class, constraint, m.getFieldType()));
             }
         }
-        return MethodHandleImpl.findMethod(IMPL_TOKEN, m, doDispatch, lookupClass);
+        if (m.isInvocable())
+            return MethodHandleImpl.findMethod(IMPL_TOKEN, m, doDispatch, lookup.lookupClass());
+        else if (m.isField())
+            return MethodHandleImpl.accessField(IMPL_TOKEN, m, isSetter, lookup.lookupClass());
+        else
+            throw new InternalError();
     }
 
     /**
@@ -472,138 +543,104 @@
         return MethodHandleImpl.accessArrayElement(IMPL_TOKEN, arrayClass, true);
     }
 
-
     /// method handle invocation (reflective style)
 
     /**
-     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
-     * Call the {@code invoke} method of a given method handle,
-     * with arguments that exactly match the parameter types of the method handle.
-     * The length of the arguments array must equal the parameter count
-     * of the target's type.
-     * The arguments array is spread into separate arguments, and
-     * basic reference and unboxing conversions are applied.
-     * <p>
-     * In order to match the type of the target, the following argument
-     * conversions are applied as necessary:
-     * <ul>
-     * <li>reference casting
-     * <li>unboxing
-     * </ul>
-     * The following conversions are not applied:
-     * <ul>
-     * <li>primitive conversions (e.g., {@code byte} to {@code int}
-     * <li>varargs conversions other than the initial spread
-     * <li>any application-specific conversions (e.g., string to number)
-     * </ul>
-     * The result returned by the call is boxed if it is a primitive,
-     * or forced to null if the return type is void.
-     * <p>
-     * This call is a convenience method for the following code:
-     * <pre>
-     *   MethodHandle invoker = MethodHandles.genericInvoker(target.type(), 0, true);
-     *   Object result = invoker.invoke(arguments);
-     * </pre>
-     * @param target the method handle to invoke
-     * @param arguments the arguments to pass to the target
-     * @return the result returned by the target
+     * @deprecated Alias for MethodHandle.invokeVarargs.
      */
+    @Deprecated
     public static
-    Object invoke(MethodHandle target, Object... arguments) {
-        int argc = arguments == null ? 0 : arguments.length;
-        MethodType type = target.type();
-        if (argc <= 4) {
-            MethodHandle invoker = invokers(type).genericInvoker();
-            switch (argc) {
-                case 0:  return invoker.<Object>invoke(target);
-                case 1:  return invoker.<Object>invoke(target,
-                                    arguments[0]);
-                case 2:  return invoker.<Object>invoke(target,
-                                    arguments[0], arguments[1]);
-                case 3:  return invoker.<Object>invoke(target,
-                                    arguments[0], arguments[1], arguments[2]);
-                case 4:  return invoker.<Object>invoke(target,
-                                    arguments[0], arguments[1], arguments[2], arguments[3]);
-            }
-        }
-        MethodHandle invoker = invokers(type).varargsInvoker();
-        return invoker.<Object>invoke(target, arguments);
+    Object invokeVarargs(MethodHandle target, Object... arguments) throws Throwable {
+        return target.invokeVarargs(arguments);
     }
 
-    public static
-    Object invoke_0(MethodHandle target) {
-        MethodHandle invoker = invokers(target.type()).genericInvoker();
-        return invoker.<Object>invoke(target);
-    }
-    public static
-    Object invoke_1(MethodHandle target, Object a0) {
-        MethodHandle invoker = invokers(target.type()).genericInvoker();
-        return invoker.<Object>invoke(target, a0);
-    }
+    /**
+     * @deprecated Alias for MethodHandle.invokeVarargs.
+     */
+    @Deprecated
     public static
-    Object invoke_2(MethodHandle target, Object a0, Object a1) {
-        MethodHandle invoker = invokers(target.type()).genericInvoker();
-        return invoker.<Object>invoke(target, a0, a1);
-    }
-    public static
-    Object invoke_3(MethodHandle target, Object a0, Object a1, Object a2) {
-        MethodHandle invoker = invokers(target.type()).genericInvoker();
-        return invoker.<Object>invoke(target, a0, a1, a2);
-    }
-    public static
-    Object invoke_4(MethodHandle target, Object a0, Object a1, Object a2, Object a3) {
-        MethodHandle invoker = invokers(target.type()).genericInvoker();
-        return invoker.<Object>invoke(target, a0, a1, a2, a3);
+    Object invoke(MethodHandle target, Object... arguments) throws Throwable {
+        return target.invokeVarargs(arguments);
     }
 
     /**
      * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
-     * Give a method handle which will invoke any method handle of the
+     * Produce a method handle which will invoke any method handle of the
      * given type on a standard set of {@code Object} type arguments.
-     * The the resulting invoker will be a method handle with the following
+     * The resulting invoker will be a method handle with the following
      * arguments:
      * <ul>
      * <li>a single {@code MethodHandle} target
-     * <li>zero or more {@code Object} values
-     * <li>an optional {@code Object[]} array containing more arguments
+     * <li>zero or more {@code Object} values (one for each argument in {@code type})
      * </ul>
-     * The invoker will spread the varargs array (if present), apply
+     * The invoker will apply reference casts as necessary and unbox primitive arguments,
+     * as if by {@link #convertArguments}.
+     * The return value of the invoker will be an {@code Object} reference,
+     * boxing a primitive value if the original type returns a primitive,
+     * and always null if the original type returns void.
+     * <p>
+     * This method is equivalent to the following code (though it may be more efficient):
+     * <p><blockquote><pre>
+     * MethodHandle invoker = exactInvoker(type);
+     * MethodType genericType = type.generic();
+     * genericType = genericType.insertParameterType(0, MethodHandle.class);
+     * return convertArguments(invoker, genericType);
+     * </pre></blockquote>
+     * @param type the type of target methods which the invoker will apply to
+     * @return a method handle suitable for invoking any method handle of the given type
+     */
+    static public
+    MethodHandle genericInvoker(MethodType type) {
+        return invokers(type).genericInvoker();
+    }
+
+    /**
+     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
+     * Produce a method handle which will invoke any method handle of the
+     * given type on a standard set of {@code Object} type arguments
+     * and a single trailing {@code Object[]} array.
+     * The resulting invoker will be a method handle with the following
+     * arguments:
+     * <ul>
+     * <li>a single {@code MethodHandle} target
+     * <li>zero or more {@code Object} values (counted by {@code objectArgCount})
+     * <li>an {@code Object[]} array containing more arguments
+     * </ul>
+     * The invoker will spread the varargs array, apply
      * reference casts as necessary, and unbox primitive arguments.
      * The return value of the invoker will be an {@code Object} reference,
      * boxing a primitive value if the original type returns a primitive,
      * and always null if the original type returns void.
      * <p>
-     * This is a convenience method equivalent to the following code:
-     * <pre>
+     * This method is equivalent to the following code (though it may be more efficient):
+     * <p><blockquote><pre>
      * MethodHandle invoker = exactInvoker(type);
-     * MethodType genericType = MethodType.makeGeneric(objectArgCount, varargs);
-     * genericType = genericType.insertParameterType(0, MethodHandle.class);
-     * if (!varargs)
-     *     return convertArguments(invoker, genericType);
-     * else
-     *     return spreadArguments(invoker, genericType);
-     * </pre>
+     * MethodType vaType = MethodType.makeGeneric(objectArgCount, true);
+     * vaType = vaType.insertParameterType(0, MethodHandle.class);
+     * return spreadArguments(invoker, vaType);
+     * </pre></blockquote>
      * @param type the desired target type
      * @param objectArgCount number of fixed (non-varargs) {@code Object} arguments
-     * @param varargs if true, the invoker will accept a final {@code Object[]} argument
      * @return a method handle suitable for invoking any method handle of the given type
      */
     static public
-    MethodHandle genericInvoker(MethodType type, int objectArgCount, boolean varargs) {
-        return invokers(type).genericInvoker();
+    MethodHandle varargsInvoker(MethodType type, int objectArgCount) {
+        if (objectArgCount < 0 || objectArgCount > type.parameterCount())
+            throw new IllegalArgumentException("bad argument count "+objectArgCount);
+        return invokers(type).varargsInvoker(objectArgCount);
     }
 
     /**
      * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
-     * Give a method handle which will take a invoke any method handle of the
+     * Produce a method handle which will take a invoke any method handle of the
      * given type.  The resulting invoker will have a type which is
      * exactly equal to the desired type, except that it will accept
      * an additional leading argument of type {@code MethodHandle}.
      * <p>
-     * This is a convenience method equivalent to the following code:
-     * <pre>
-     *     MethodHandles.lookup().findVirtual(MethodHandle.class, "invoke", type);
-     * </pre>
+     * This method is equivalent to the following code (though it may be more efficient):
+     * <p><blockquote><pre>
+     * lookup().findVirtual(MethodHandle.class, "invoke", type);
+     * </pre></blockquote>
      * @param type the desired target type
      * @return a method handle suitable for invoking any method handle of the given type
      */
@@ -612,7 +649,30 @@
         return invokers(type).exactInvoker();
     }
 
-    static private Invokers invokers(MethodType type) {
+    /**
+     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
+     * Produce a method handle equivalent to an invokedynamic instruction
+     * which has been linked to the given call site.
+     * Along with {@link Lookup#findVirtual}, {@link Lookup#findStatic},
+     * and {@link Lookup#findSpecial}, this completes the emulation
+     * of the JVM's {@code invoke} instructions.
+     * <p>This method is equivalent to the following code:
+     * <p><blockquote><pre>
+     * MethodHandle getTarget, invoker, result;
+     * getTarget = lookup().bind(site, "getTarget", methodType(MethodHandle.class));
+     * invoker = exactInvoker(site.type());
+     * result = foldArguments(invoker, getTarget)
+     * </pre></blockquote>
+     * @return a method handle which always invokes the call site's target
+     */
+    public static
+    MethodHandle dynamicInvoker(CallSite site) {
+        MethodHandle getTarget = MethodHandleImpl.bindReceiver(IMPL_TOKEN, CallSite.GET_TARGET, site);
+        MethodHandle invoker = exactInvoker(site.type());
+        return foldArguments(invoker, getTarget);
+    }
+
+    static Invokers invokers(MethodType type) {
         return MethodTypeImpl.invokers(IMPL_TOKEN, type);
     }
 
@@ -688,14 +748,11 @@
     /// method handle modification (creation from other method handles)
 
     /**
-     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
      * Produce a method handle which adapts the type of the
-     * given method handle to a new type, by pairwise argument conversion,
-     * and/or varargs conversion.
-     * The original type and new type must have the same number of
-     * arguments, or else one or both them the must be varargs types.
+     * given method handle to a new type by pairwise argument conversion.
+     * The original type and new type must have the same number of arguments.
      * The resulting method handle is guaranteed to confess a type
-     * which is equal to the desired new type, with any varargs property erased.
+     * which is equal to the desired new type.
      * <p>
      * If the original type and new type are equal, returns target.
      * <p>
@@ -703,26 +760,15 @@
      * arguments and return types.  Let T0 and T1 be the differing
      * new and old parameter types (or old and new return types)
      * for corresponding values passed by the new and old method types.
-     * <p>
-     * If an ordinary (non-varargs) parameter of the new type is
-     * to be boxed in a varargs parameter of the old type of type T1[],
-     * then T1 is the element type of the varargs array.
-     * Otherwise, if a varargs parameter of the new type of type T0[]
-     * is to be spread into one or more outgoing old type parameters,
-     * then T0 is the element type of the
-     * If the new type is varargs and the old type is not, the varargs
-     * argument will be checked and must be a non-null array of exactly
-     * the right length.  If there are no parameters in the old type
-     * corresponding to the new varargs parameter, the varargs argument
-     * is also allowed to be null.
-     * <p>
      * Given those types T0, T1, one of the following conversions is applied
      * if possible:
      * <ul>
-     * <li>If T0 and T1 are references, then a cast to T2 is applied,
-     *     where T2 is Object if T1 is an interface, else T1.
-     *     (The types do not need to be related in any particular way.
-     *     The treatment of interfaces follows the usage of the bytecode verifier.)
+     * <li>If T0 and T1 are references, and T1 is not an interface type,
+     *     then a cast to T1 is applied.
+     *     (The types do not need to be related in any particular way.)
+     * <li>If T0 and T1 are references, and T1 is an interface type,
+     *     then the value of type T0 is passed as a T1 without a cast.
+     *     (This treatment of interfaces follows the usage of the bytecode verifier.)
      * <li>If T0 and T1 are primitives, then a Java casting
      *     conversion (JLS 5.5) is applied, if one exists.
      * <li>If T0 and T1 are primitives and one is boolean,
@@ -745,16 +791,17 @@
      *     if necessary to T1 by one of the preceding conversions.
      *     Otherwise, T0 is converted directly to the wrapper type for T1,
      *     which is then unboxed.
-     * <li>If T1 is void, any returned value is discarded
-     * <li>If T0 is void and T1 a reference, a null value is introduced.
-     * <li>If T0 is void and T1 a primitive, a zero value is introduced.
+     * <li>If the return type T1 is void, any returned value is discarded
+     * <li>If the return type T0 is void and T1 a reference, a null value is introduced.
+     * <li>If the return type T0 is void and T1 a primitive, a zero value is introduced.
      * </ul>
      * @param target the method handle to invoke after arguments are retyped
      * @param newType the expected type of the new method handle
      * @return a method handle which delegates to {@code target} after performing
      *           any necessary argument conversions, and arranges for any
      *           necessary return value conversions
-     * @throws WrongMethodTypeException if the conversion cannot be made
+     * @throws IllegalArgumentException if the conversion cannot be made
+     * @see MethodHandle#asType
      */
     public static
     MethodHandle convertArguments(MethodHandle target, MethodType newType) {
@@ -872,23 +919,17 @@
      * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
      * Produce a method handle which adapts the type of the
      * given method handle to a new type, by collecting a series of
-     * trailing arguments into an array.
-     * The resulting method handle is guaranteed to confess a type
-     * which is equal to the desired new type.
+     * trailing arguments as elements to a single argument array.
      * <p>
-     * This method is inverse to {@link #spreadArguments}.
+     * This method may be used as an inverse to {@link #spreadArguments}.
      * The final parameter type of the old type must be an array type T[],
      * which is the type of what is called the <i>spread</i> argument.
      * The trailing arguments of the new type which correspond to
      * the spread argument are all converted to type T and collected
      * into an array before the original method is called.
-     * <p>
-     * ISSUE: Unify this with combineArguments.  CollectArguments
-     * is combineArguments with (a) new Object[]{...} as a combiner,
-     * and (b) the combined arguments dropped, in favor of the combined result.
      * @param target the method handle to invoke after the argument is prepended
      * @param newType the expected type of the new method handle
-     * @return a new method handle which collects some trailings argument
+     * @return a new method handle which collects some trailing argument
      *         into an array, before calling the original method handle
      */
     public static
@@ -900,50 +941,72 @@
         int numCollect = (inargs - collectPos);
         if (collectPos < 0 || numCollect < 0)
             throw newIllegalArgumentException("wrong number of arguments");
-        return MethodHandleImpl.collectArguments(IMPL_TOKEN, target, newType, collectPos);
+        MethodHandle res = MethodHandleImpl.collectArguments(IMPL_TOKEN, target, newType, collectPos, null);
+        if (res == null) {
+            throw newIllegalArgumentException("cannot collect from "+newType+" to " +oldType);
+        }
+        return res;
     }
 
     /**
      * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
-     * Produce a method handle which calls the original method handle,
-     * after inserting the given argument at the given position.
-     * The type of the new method handle will drop the corresponding argument
-     * type from the original handle's type.
+     * Produce a method handle which calls the original method handle {@code target},
+     * after inserting the given argument(s) at the given position.
+     * The formal parameters to {@code target} which will be supplied by those
+     * arguments are called <em>bound parameters</em>, because the new method
+     * will contain bindings for those parameters take from {@code values}.
+     * The type of the new method handle will drop the types for the bound
+     * parameters from the original target type, since the new method handle
+     * will no longer require those arguments to be supplied by its callers.
      * <p>
-     * The given argument object must match the dropped argument type.
-     * If the dropped argument type is a primitive, the argument object
-     * must be a wrapper, and is unboxed to produce the primitive.
+     * Each given argument object must match the corresponding bound parameter type.
+     * If a bound parameter type is a primitive, the argument object
+     * must be a wrapper, and will be unboxed to produce the primitive value.
      * <p>
      * The  <i>pos</i> may range between zero and <i>N</i> (inclusively),
-     * where <i>N</i> is the number of argument types in <i>target</i>,
-     * meaning to insert the new argument as the first or last (respectively),
-     * or somewhere in between.
+     * where <i>N</i> is the number of argument types in resulting method handle
+     * (after bound parameter types are dropped).
      * @param target the method handle to invoke after the argument is inserted
      * @param pos where to insert the argument (zero for the first)
-     * @param value the argument to insert
+     * @param values the series of arguments to insert
      * @return a new method handle which inserts an additional argument,
      *         before calling the original method handle
      */
     public static
-    MethodHandle insertArgument(MethodHandle target, int pos, Object value) {
+    MethodHandle insertArguments(MethodHandle target, int pos, Object... values) {
+        int insCount = values.length;
         MethodType oldType = target.type();
         ArrayList<Class<?>> ptypes =
                 new ArrayList<Class<?>>(oldType.parameterList());
         int outargs = oldType.parameterCount();
-        int inargs  = outargs - 1;
-        if (pos < 0 || pos >= outargs)
+        int inargs  = outargs - insCount;
+        if (inargs < 0)
+            throw newIllegalArgumentException("too many values to insert");
+        if (pos < 0 || pos > inargs)
             throw newIllegalArgumentException("no argument type to append");
-        Class<?> valueType = ptypes.remove(pos);
-        value = checkValue(valueType, value);
-        if (pos == 0 && !valueType.isPrimitive()) {
-            // At least for now, make bound method handles a special case.
-            // This lets us get by with minimal JVM support, at the expense
-            // of generating signature-specific adapters as Java bytecodes.
-            MethodHandle bmh = MethodHandleImpl.bindReceiver(IMPL_TOKEN, target, value);
-            if (bmh != null)  return bmh;
-            // else fall through to general adapter machinery
+        MethodHandle result = target;
+        for (int i = 0; i < insCount; i++) {
+            Object value = values[i];
+            Class<?> valueType = oldType.parameterType(pos+i);
+            value = checkValue(valueType, value);
+            if (pos == 0 && !valueType.isPrimitive()) {
+                // At least for now, make bound method handles a special case.
+                MethodHandle bmh = MethodHandleImpl.bindReceiver(IMPL_TOKEN, result, value);
+                if (bmh != null) {
+                    result = bmh;
+                    continue;
+                }
+                // else fall through to general adapter machinery
+            }
+            result = MethodHandleImpl.bindArgument(IMPL_TOKEN, result, pos, value);
         }
-        return MethodHandleImpl.bindArgument(IMPL_TOKEN, target, pos, value);
+        return result;
+    }
+
+    @Deprecated // "use MethodHandles.insertArguments instead"
+    public static
+    MethodHandle insertArgument(MethodHandle target, int pos, Object value) {
+        return insertArguments(target, pos, value);
     }
 
     /**
@@ -953,10 +1016,25 @@
      * The type of the new method handle will insert the given argument
      * type(s), at that position, into the original handle's type.
      * <p>
-     * The <i>pos</i> may range between zero and <i>N-1</i>,
+     * The <i>pos</i> may range between zero and <i>N</i>,
      * where <i>N</i> is the number of argument types in <i>target</i>,
      * meaning to drop the first or last argument (respectively),
      * or an argument somewhere in between.
+     * <p>
+     * <b>Example:</b>
+     * <p><blockquote><pre>
+     *   MethodHandle cat = MethodHandles.lookup().
+     *     findVirtual(String.class, "concat", String.class, String.class);
+     *   System.out.println(cat.&lt;String&gt;invoke("x", "y")); // xy
+     *   MethodHandle d0 = dropArguments(cat, 0, String.class);
+     *   System.out.println(d0.&lt;String&gt;invoke("x", "y", "z")); // xy
+     *   MethodHandle d1 = dropArguments(cat, 1, String.class);
+     *   System.out.println(d1.&lt;String&gt;invoke("x", "y", "z")); // xz
+     *   MethodHandle d2 = dropArguments(cat, 2, String.class);
+     *   System.out.println(d2.&lt;String&gt;invoke("x", "y", "z")); // yz
+     *   MethodHandle d12 = dropArguments(cat, 1, String.class, String.class);
+     *   System.out.println(d12.&lt;String&gt;invoke("w", "x", "y", "z")); // wz
+     * </pre></blockquote>
      * @param target the method handle to invoke after the argument is dropped
      * @param valueTypes the type(s) of the argument to drop
      * @param pos which argument to drop (zero for the first)
@@ -964,20 +1042,150 @@
      *         before calling the original method handle
      */
     public static
-    MethodHandle dropArguments(MethodHandle target, int pos, Class<?>... valueTypes) {
-        if (valueTypes.length == 0)  return target;
+    MethodHandle dropArguments(MethodHandle target, int pos, List<Class<?>> valueTypes) {
+        if (valueTypes.size() == 0)  return target;
         MethodType oldType = target.type();
         int outargs = oldType.parameterCount();
-        int inargs  = outargs + valueTypes.length;
+        int inargs  = outargs + valueTypes.size();
         if (pos < 0 || pos >= inargs)
             throw newIllegalArgumentException("no argument type to remove");
         ArrayList<Class<?>> ptypes =
                 new ArrayList<Class<?>>(oldType.parameterList());
-        ptypes.addAll(pos, Arrays.asList(valueTypes));
-        MethodType newType = MethodType.make(oldType.returnType(), ptypes);
+        ptypes.addAll(pos, valueTypes);
+        MethodType newType = MethodType.methodType(oldType.returnType(), ptypes);
         return MethodHandleImpl.dropArguments(IMPL_TOKEN, target, newType, pos);
     }
 
+    public static
+    MethodHandle dropArguments(MethodHandle target, int pos, Class<?>... valueTypes) {
+        return dropArguments(target, pos, Arrays.asList(valueTypes));
+    }
+
+    /**
+     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
+     * Adapt a target method handle {@code target} by pre-processing
+     * one or more of its arguments, each with its own unary filter function,
+     * and then calling the target with each pre-processed argument
+     * replaced by the result of its corresponding filter function.
+     * <p>
+     * The pre-processing is performed by one or more method handles,
+     * specified in the non-null elements of the {@code filters} array.
+     * (If there are no such elements, the original target is returned.)
+     * Each filter (that is, each non-null element of {@code filters})
+     * is applied to the corresponding argument of the adapter.
+     * <p>
+     * If a filter {@code F} applies to the {@code N}th argument of
+     * the method handle, then {@code F} must be a method handle which
+     * takes exactly one argument.  The type of {@code F}'s sole argument
+     * replaces the corresponding argument type of the target
+     * in the resulting adapted method handle.
+     * The return type of {@code F} must be identical to the corresponding
+     * parameter type of the target.
+     * <p>
+     * It is an error if there are non-null elements of {@code filters}
+     * which do not correspond to argument positions in the target.
+     * The actual length of the target array may be any number, it need
+     * not be the same as the parameter count of the target type.
+     * (This provides an easy way to filter just the first argument or two
+     * of a target method handle.)
+     * <p> Here is pseudocode for the resulting adapter:
+     * <blockquote><pre>
+     * // there are N arguments in the A sequence
+     * T target(A[N]...);
+     * [i&lt;N] V[i] filter[i](B[i]) = filters[i] ?: identity;
+     * T adapter(B[N]... b) {
+     *   A[N] a...;
+     *   [i&lt;N] a[i] = filter[i](b[i]);
+     *   return target(a...);
+     * }
+     * </pre></blockquote>
+     * @param target the method handle to invoke after arguments are filtered
+     * @param filters method handles to call initially on filtered arguments
+     * @return method handle which incorporates the specified argument filtering logic
+     * @throws IllegalArgumentException if a non-null element of {@code filters}
+     *          does not match a corresponding argument type of {@code target}
+     */
+    public static
+    MethodHandle filterArguments(MethodHandle target, MethodHandle... filters) {
+        MethodType targetType = target.type();
+        MethodHandle adapter = target;
+        MethodType adapterType = targetType;
+        int pos = -1, maxPos = targetType.parameterCount();
+        for (MethodHandle filter : filters) {
+            pos += 1;
+            if (filter == null)  continue;
+            if (pos >= maxPos)
+                throw newIllegalArgumentException("too many filters");
+            MethodType filterType = filter.type();
+            if (filterType.parameterCount() != 1
+                || filterType.returnType() != targetType.parameterType(pos))
+                throw newIllegalArgumentException("target and filter types do not match");
+            adapterType = adapterType.changeParameterType(pos, filterType.parameterType(0));
+            adapter = MethodHandleImpl.filterArgument(IMPL_TOKEN, adapter, pos, filter);
+        }
+        MethodType midType = adapter.type();
+        if (midType != adapterType)
+            adapter = MethodHandleImpl.convertArguments(IMPL_TOKEN, adapter, adapterType, midType, null);
+        return adapter;
+    }
+
+    /**
+     * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
+     * Adapt a target method handle {@code target} by pre-processing
+     * some of its arguments, and then calling the target with
+     * the result of the pre-processing, plus all original arguments.
+     * <p>
+     * The pre-processing is performed by a second method handle, the {@code combiner}.
+     * The first {@code N} arguments passed to the adapter,
+     * are copied to the combiner, which then produces a result.
+     * (Here, {@code N} is defined as the parameter count of the adapter.)
+     * After this, control passes to the {@code target}, with both the result
+     * of the combiner, and all the original incoming arguments.
+     * <p>
+     * The first argument type of the target must be identical with the
+     * return type of the combiner.
+     * The resulting adapter is the same type as the target, except that the
+     * initial argument type of the target is dropped.
+     * <p>
+     * (Note that {@link #dropArguments} can be used to remove any arguments
+     * that either the {@code combiner} or {@code target} does not wish to receive.
+     * If some of the incoming arguments are destined only for the combiner,
+     * consider using {@link #collectArguments} instead, since those
+     * arguments will not need to be live on the stack on entry to the
+     * target.)
+     * <p>
+     * The first argument of the target must be identical with the
+     * return value of the combiner.
+     * <p> Here is pseudocode for the resulting adapter:
+     * <blockquote><pre>
+     * // there are N arguments in the A sequence
+     * T target(V, A[N]..., B...);
+     * V combiner(A...);
+     * T adapter(A... a, B... b) {
+     *   V v = combiner(a...);
+     *   return target(v, a..., b...);
+     * }
+     * </pre></blockquote>
+     * @param target the method handle to invoke after arguments are combined
+     * @param combiner method handle to call initially on the incoming arguments
+     * @return method handle which incorporates the specified argument folding logic
+     * @throws IllegalArgumentException if the first argument type of
+     *          {@code target} is not the same as {@code combiner}'s return type,
+     *          or if the next {@code foldArgs} argument types of {@code target}
+     *          are not identical with the argument types of {@code combiner}
+     */
+    public static
+    MethodHandle foldArguments(MethodHandle target, MethodHandle combiner) {
+        MethodType targetType = target.type();
+        MethodType combinerType = combiner.type();
+        int foldArgs = combinerType.parameterCount();
+        boolean ok = (targetType.parameterCount() >= 1 + foldArgs);
+        if (!ok)
+            throw misMatchedTypes("target and combiner types", targetType, combinerType);
+        MethodType newType = targetType.dropParameterTypes(0, 1);
+        return MethodHandleImpl.foldArguments(IMPL_TOKEN, target, newType, combiner);
+    }
+
     /**
      * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
      * Make a method handle which adapts a target method handle,
@@ -985,18 +1193,18 @@
      * If the guard fails, a fallback handle is called instead.
      * All three method handles must have the same corresponding
      * argument and return types, except that the return type
-     * of the test must be boolean.
+     * of the test must be boolean, and the test is allowed
+     * to have fewer arguments than the other two method handles.
      * <p> Here is pseudocode for the resulting adapter:
      * <blockquote><pre>
-     * signature T(A...);
      * boolean test(A...);
-     * T target(A...);
-     * T fallback(A...);
-     * T adapter(A... a) {
+     * T target(A...,B...);
+     * T fallback(A...,B...);
+     * T adapter(A... a,B... b) {
      *   if (test(a...))
-     *     return target(a...);
+     *     return target(a..., b...);
      *   else
-     *     return fallback(a...);
+     *     return fallback(a..., b...);
      * }
      * </pre></blockquote>
      * @param test method handle used for test, must return boolean
@@ -1011,10 +1219,23 @@
     MethodHandle guardWithTest(MethodHandle test,
                                MethodHandle target,
                                MethodHandle fallback) {
-        if (target.type() != fallback.type())
-            throw newIllegalArgumentException("target and fallback types do not match");
-        if (target.type().changeReturnType(boolean.class) != test.type())
-            throw newIllegalArgumentException("target and test types do not match");
+        MethodType gtype = test.type();
+        MethodType ttype = target.type();
+        MethodType ftype = fallback.type();
+        if (ttype != ftype)
+            throw misMatchedTypes("target and fallback types", ttype, ftype);
+        MethodType gtype2 = ttype.changeReturnType(boolean.class);
+        if (gtype2 != gtype) {
+            if (gtype.returnType() != boolean.class)
+                throw newIllegalArgumentException("guard type is not a predicate "+gtype);
+            int gpc = gtype.parameterCount(), tpc = ttype.parameterCount();
+            if (gpc < tpc) {
+                test = dropArguments(test, gpc, ttype.parameterList().subList(gpc, tpc));
+                gtype = test.type();
+            }
+            if (gtype2 != gtype)
+                throw misMatchedTypes("target and test types", ttype, gtype);
+        }
         /* {
             MethodHandle invoke = findVirtual(MethodHandle.class, "invoke", target.type());
             static MethodHandle choose(boolean z, MethodHandle t, MethodHandle f) {
@@ -1027,7 +1248,7 @@
             }
             // choose = \z.(z ? target : fallback)
             MethodHandle choose = findVirtual(MethodHandles.class, "choose",
-                    MethodType.make(boolean.class, MethodHandle.class, MethodHandle.class));
+                    MethodType.methodType(boolean.class, MethodHandle.class, MethodHandle.class));
             choose = appendArgument(choose, target);
             choose = appendArgument(choose, fallback);
             MethodHandle dispatch = compose(choose, test);
@@ -1038,67 +1259,88 @@
         return MethodHandleImpl.makeGuardWithTest(IMPL_TOKEN, test, target, fallback);
     }
 
+    static RuntimeException misMatchedTypes(String what, MethodType t1, MethodType t2) {
+        return newIllegalArgumentException(what + " must match: " + t1 + " != " + t2);
+    }
+
     /**
      * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
-     * Adapt a target method handle {@code target} by first processing
-     * its arguments, and then calling the target.
-     * The initial processing is performed by a second method handle, the {@code combiner}.
-     * After this, control passes to the {@code target}, with the same arguments.
+     * Make a method handle which adapts a target method handle,
+     * by running it inside an exception handler.
+     * If the target returns normally, the adapter returns that value.
+     * If an exception matching the specified type is thrown, the fallback
+     * handle is called instead on the exception, plus the original arguments.
      * <p>
-     * The return value of the {@code combiner} is inserted into the argument list
-     * for the {@code target} at the indicated position {@code pos}, if it is non-negative.
-     * Except for this inserted argument (if any), the argument types of
-     * the target {@code target} and the {@code combiner} must be identical.
-     * <p>
-     * (Note that {@link #dropArguments} can be used to remove any arguments
-     * that either the {@code combiner} or {@code target} does not wish to receive.)
-     * <p>
-     * The combiner handle must have the same argument types as the
-     * target handle, but must return {@link MethodHandle} instead of
-     * the ultimate return type.  The returned method handle, in turn,
-     * is required to have exactly the given final method type.
+     * The handler must have leading parameter of {@code exType} or a supertype,
+     * followed by arguments which correspond <em>(how? TBD)</em> to
+     * all the parameters of the target.
+     * The target and handler must return the same type.
      * <p> Here is pseudocode for the resulting adapter:
      * <blockquote><pre>
-     * signature V(A[pos]..., B...);
-     * signature T(A[pos]..., V, B...);
-     * T target(A... a, V v, B... b);
-     * V combiner(A..., B...);
-     * T adapter(A... a, B... b) {
-     *   V v = combiner(a..., b...);
-     *   return target(a..., v, b...);
+     * T target(A...);
+     * T handler(ExType, A...);
+     * T adapter(A... a) {
+     *   try {
+     *     return target(a...);
+     *   } catch (ExType ex) {
+     *     return handler(ex, a...);
+     *   }
      * }
      * </pre></blockquote>
-     * @param target the method handle to invoke after arguments are combined
-     * @param pos where the return value of {@code combiner} is to
-     *          be inserted as an argument to {@code target}
-     * @param combiner method handle to call initially on the incoming arguments
-     * @return method handle which incorporates the specified dispatch logic
-     * @throws IllegalArgumentException if {@code combiner} does not itself
-     *          return either void or the {@code pos}-th argument of {@code target},
-     *          or does not have the same argument types as {@code target}
-     *          (minus the inserted argument)
+     * @param target method handle to call
+     * @param exType the type of exception which the handler will catch
+     * @param handler method handle to call if a matching exception is thrown
+     * @return method handle which incorporates the specified try/catch logic
+     * @throws IllegalArgumentException if {@code handler} does not accept
+     *          the given exception type, or if the method handle types do
+     *          not match in their return types and their
+     *          corresponding parameters
      */
     public static
-    MethodHandle combineArguments(MethodHandle target, int pos, MethodHandle combiner) {
-        MethodType mhType = target.type();
-        Class<?> combineType = combiner.type().returnType();
-        MethodType incomingArgs;
-        if (pos < 0) {
-            // No inserted argument; target & combiner must have same argument types.
-            incomingArgs = mhType;
-            if (!incomingArgs.changeReturnType(combineType).equals(combiner.type()))
-                throw newIllegalArgumentException("target and combiner types do not match");
-        } else {
-            // Inserted argument.
-            if (pos >= mhType.parameterCount()
-                || mhType.parameterType(pos) != combineType)
-                throw newIllegalArgumentException("inserted combiner argument does not match target");
-            incomingArgs = mhType.dropParameterType(pos);
-        }
-        if (!incomingArgs.changeReturnType(combineType).equals(combiner.type())) {
-            throw newIllegalArgumentException("target and combiner types do not match");
-        }
-        return MethodHandleImpl.combineArguments(IMPL_TOKEN, target, combiner, pos);
+    MethodHandle catchException(MethodHandle target,
+                                Class<? extends Throwable> exType,
+                                MethodHandle handler) {
+        MethodType targetType = target.type();
+        MethodType handlerType = handler.type();
+        boolean ok = (targetType.parameterCount() ==
+                      handlerType.parameterCount() - 1);
+//        for (int i = 0; ok && i < numExArgs; i++) {
+//            if (targetType.parameterType(i) != handlerType.parameterType(1+i))
+//                ok = false;
+//        }
+        if (!ok)
+            throw newIllegalArgumentException("target and handler types do not match");
+        return MethodHandleImpl.makeGuardWithCatch(IMPL_TOKEN, target, exType, handler);
     }
 
+    /**
+     * Produce a method handle which will throw exceptions of the given {@code exType}.
+     * The method handle will accept a single argument of {@code exType},
+     * and immediately throw it as an exception.
+     * The method type will nominally specify a return of {@code returnType}.
+     * The return type may be anything convenient:  It doesn't matter to the
+     * method handle's behavior, since it will never return normally.
+     */
+    public static
+    MethodHandle throwException(Class<?> returnType, Class<? extends Throwable> exType) {
+        return MethodHandleImpl.throwException(IMPL_TOKEN, MethodType.methodType(returnType, exType));
+    }
+
+    /** Alias for {@link MethodType#methodType}. */
+    @Deprecated // "use MethodType.methodType instead"
+    public static MethodType methodType(Class<?> rtype) {
+        return MethodType.methodType(rtype);
+    }
+
+    /** Alias for {@link MethodType#methodType}. */
+    @Deprecated // "use MethodType.methodType instead"
+    public static MethodType methodType(Class<?> rtype, Class<?> ptype) {
+        return MethodType.methodType(rtype, ptype);
+    }
+
+    /** Alias for {@link MethodType#methodType}. */
+    @Deprecated // "use MethodType.methodType instead"
+    public static MethodType methodType(Class<?> rtype, Class<?> ptype0, Class<?>... ptypes) {
+        return MethodType.methodType(rtype, ptype0, ptypes);
+    }
 }

--- a/jdk/src/share/classes/java/dyn/MethodType.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/java/dyn/MethodType.java	Thu Jan 07 16:16:45 2010 -0800
@@ -32,7 +32,7 @@
 import sun.dyn.Access;
 import sun.dyn.Invokers;
 import sun.dyn.MethodTypeImpl;
-import sun.dyn.util.BytecodeSignature;
+import sun.dyn.util.BytecodeDescriptor;
 import static sun.dyn.MemberName.newIllegalArgumentException;
 
 /**
@@ -63,7 +63,7 @@
 
     static {
         // This hack allows the implementation package special access to
-        // the internals of MethodType.  In particular, the Form has all sorts
+        // the internals of MethodType.  In particular, the MTImpl has all sorts
         // of cached information useful to the implementation code.
         MethodTypeImpl.setMethodTypeFriend(IMPL_TOKEN, new MethodTypeImpl.MethodTypeFriend() {
             public Class<?>[] ptypes(MethodType mt)        { return mt.ptypes; }
@@ -114,50 +114,75 @@
      * @throws IllegalArgumentException if any of the ptypes is void
      */
     public static
+    MethodType methodType(Class<?> rtype, Class<?>[] ptypes) {
+        return makeImpl(rtype, ptypes, false);
+    }
+    @Deprecated public static
     MethodType make(Class<?> rtype, Class<?>[] ptypes) {
-        return makeImpl(rtype, ptypes, false);
+        return methodType(rtype, ptypes);
     }
 
-    /** Convenience method for {@link #make(java.lang.Class, java.lang.Class[])}. */
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}. */
     public static
+    MethodType methodType(Class<?> rtype, List<? extends Class<?>> ptypes) {
+        boolean notrust = false;  // random List impl. could return evil ptypes array
+        return makeImpl(rtype, ptypes.toArray(NO_PTYPES), notrust);
+    }
+    @Deprecated public static
     MethodType make(Class<?> rtype, List<? extends Class<?>> ptypes) {
-        return makeImpl(rtype, ptypes.toArray(NO_PTYPES), true);
+        return methodType(rtype, ptypes);
     }
 
-    /** Convenience method for {@link #make(java.lang.Class, java.lang.Class[])}.
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
      *  The leading parameter type is prepended to the remaining array.
      */
     public static
-    MethodType make(Class<?> rtype, Class<?> ptype0, Class<?>... ptypes) {
+    MethodType methodType(Class<?> rtype, Class<?> ptype0, Class<?>... ptypes) {
         Class<?>[] ptypes1 = new Class<?>[1+ptypes.length];
         ptypes1[0] = ptype0;
         System.arraycopy(ptypes, 0, ptypes1, 1, ptypes.length);
         return makeImpl(rtype, ptypes1, true);
     }
+    @Deprecated public static
+    MethodType make(Class<?> rtype, Class<?> ptype0, Class<?>... ptypes) {
+        return methodType(rtype, ptype0, ptypes);
+    }
 
-    /** Convenience method for {@link #make(java.lang.Class, java.lang.Class[])}.
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
      *  The resulting method has no parameter types.
      */
     public static
-    MethodType make(Class<?> rtype) {
+    MethodType methodType(Class<?> rtype) {
         return makeImpl(rtype, NO_PTYPES, true);
     }
+    @Deprecated public static
+    MethodType make(Class<?> rtype) {
+        return methodType(rtype);
+    }
 
-    /** Convenience method for {@link #make(java.lang.Class, java.lang.Class[])}.
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
      *  The resulting method has the single given parameter type.
      */
     public static
-    MethodType make(Class<?> rtype, Class<?> ptype0) {
+    MethodType methodType(Class<?> rtype, Class<?> ptype0) {
         return makeImpl(rtype, new Class<?>[]{ ptype0 }, true);
     }
+    @Deprecated public static
+    MethodType make(Class<?> rtype, Class<?> ptype0) {
+        return methodType(rtype, ptype0);
+    }
 
-    /** Convenience method for {@link #make(java.lang.Class, java.lang.Class[])}.
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
      *  The resulting method has the same parameter types as {@code ptypes},
      *  and the specified return type.
      */
     public static
+    MethodType methodType(Class<?> rtype, MethodType ptypes) {
+        return makeImpl(rtype, ptypes.ptypes, true);
+    }
+    @Deprecated public static
     MethodType make(Class<?> rtype, MethodType ptypes) {
-        return makeImpl(rtype, ptypes.ptypes, true);
+        return methodType(rtype, ptypes);
     }
 
     /**
@@ -202,15 +227,16 @@
     private static final MethodType[] objectOnlyTypes = new MethodType[20];
 
     /**
-     * Convenience method for {@link #make(java.lang.Class, java.lang.Class[], boolean)}.
-     * All parameters and the return type will be Object, except the final varargs parameter if any.
+     * Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
+     * All parameters and the return type will be {@code Object},
+     * except the final varargs parameter if any, which will be {@code Object[]}.
      * @param objectArgCount number of parameters (excluding the varargs parameter if any)
-     * @param varargs whether there will be a varargs parameter, of type Object[]
+     * @param varargs whether there will be a varargs parameter, of type {@code Object[]}
      * @return a totally generic method type, given only its count of parameters and varargs
-     * @see #makeGeneric(int)
+     * @see #genericMethodType(int)
      */
     public static
-    MethodType makeGeneric(int objectArgCount, boolean varargs) {
+    MethodType genericMethodType(int objectArgCount, boolean varargs) {
         MethodType mt;
         int ivarargs = (!varargs ? 0 : 1);
         int ootIndex = objectArgCount*2 + ivarargs;
@@ -227,19 +253,27 @@
         }
         return mt;
     }
+    @Deprecated public static
+    MethodType makeGeneric(int objectArgCount, boolean varargs) {
+        return genericMethodType(objectArgCount, varargs);
+    }
 
     /**
      * All parameters and the return type will be Object.
      * @param objectArgCount number of parameters
      * @return a totally generic method type, given only its count of parameters
-     * @see #makeGeneric(int, boolean)
+     * @see #genericMethodType(int, boolean)
      */
     public static
+    MethodType genericMethodType(int objectArgCount) {
+        return genericMethodType(objectArgCount, false);
+    }
+    @Deprecated public static
     MethodType makeGeneric(int objectArgCount) {
-        return makeGeneric(objectArgCount, false);
+        return genericMethodType(objectArgCount);
     }
 
-    /** Convenience method for {@link #make(java.lang.Class, java.lang.Class[], boolean)}.
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
      * @param num    the index (zero-based) of the parameter type to change
      * @param nptype a new parameter type to replace the old one with
      * @return the same type, except with the selected parameter changed
@@ -251,11 +285,10 @@
         return makeImpl(rtype, nptypes, true);
     }
 
-    /** Convenience method for {@link #make(java.lang.Class, java.lang.Class[], boolean)}.
-     * @param num    the position (zero-based) of the inserted parameter type
-     * @param nptype a new parameter type to insert into the parameter list
-     * @return the same type, except with the selected parameter inserted
+    /** Convenience method for {@link #insertParameterTypes}.
+     * @deprecated Use {@link #insertParameterTypes} instead.
      */
+    @Deprecated
     public MethodType insertParameterType(int num, Class<?> nptype) {
         int len = ptypes.length;
         Class<?>[] nptypes = Arrays.copyOfRange(ptypes, 0, len+1);
@@ -264,23 +297,73 @@
         return makeImpl(rtype, nptypes, true);
     }
 
-    /** Convenience method for {@link #make(java.lang.Class, java.lang.Class[], boolean)}.
-     * @param num    the index (zero-based) of the parameter type to remove
-     * @return the same type, except with the selected parameter removed
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
+     * @param num    the position (zero-based) of the inserted parameter type(s)
+     * @param ptypesToInsert zero or more a new parameter types to insert into the parameter list
+     * @return the same type, except with the selected parameter(s) inserted
      */
-    public MethodType dropParameterType(int num) {
+    public MethodType insertParameterTypes(int num, Class<?>... ptypesToInsert) {
         int len = ptypes.length;
+        if (num < 0 || num > len)
+            throw newIllegalArgumentException("num="+num); //SPECME
+        int ilen = ptypesToInsert.length;
+        if (ilen == 0)  return this;
+        Class<?>[] nptypes = Arrays.copyOfRange(ptypes, 0, len+ilen);
+        System.arraycopy(nptypes, num, nptypes, num+ilen, len-num);
+        System.arraycopy(ptypesToInsert, 0, nptypes, num, ilen);
+        return makeImpl(rtype, nptypes, true);
+    }
+
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
+     * @param num    the position (zero-based) of the inserted parameter type(s)
+     * @param ptypesToInsert zero or more a new parameter types to insert into the parameter list
+     * @return the same type, except with the selected parameter(s) inserted
+     */
+    public MethodType insertParameterTypes(int num, List<Class<?>> ptypesToInsert) {
+        return insertParameterTypes(num, ptypesToInsert.toArray(NO_PTYPES));
+    }
+
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
+     * @param start  the index (zero-based) of the first parameter type to remove
+     * @param end    the index (greater than {@code start}) of the first parameter type after not to remove
+     * @return the same type, except with the selected parameter(s) removed
+     */
+    public MethodType dropParameterTypes(int start, int end) {
+        int len = ptypes.length;
+        if (!(0 <= start && start <= end && end <= len))
+            throw newIllegalArgumentException("start="+start+" end="+end); //SPECME
+        if (start == end)  return this;
         Class<?>[] nptypes;
-        if (num == 0) {
-            nptypes = Arrays.copyOfRange(ptypes, 1, len);
+        if (start == 0) {
+            if (end == len) {
+                // drop all parameters
+                nptypes = NO_PTYPES;
+            } else {
+                // drop initial parameter(s)
+                nptypes = Arrays.copyOfRange(ptypes, end, len);
+            }
         } else {
-            nptypes = Arrays.copyOfRange(ptypes, 0, len-1);
-            System.arraycopy(ptypes, num+1, nptypes, num, (len-1)-num);
+            if (end == len) {
+                // drop trailing parameter(s)
+                nptypes = Arrays.copyOfRange(ptypes, 0, start);
+            } else {
+                int tail = len - end;
+                nptypes = Arrays.copyOfRange(ptypes, 0, start + tail);
+                System.arraycopy(ptypes, end, nptypes, start, tail);
+            }
         }
         return makeImpl(rtype, nptypes, true);
     }
 
-    /** Convenience method for {@link #make(java.lang.Class, java.lang.Class[], boolean)}.
+    /** Convenience method for {@link #dropParameterTypes}.
+     * @deprecated Use {@link #dropParameterTypes} instead.
+     */
+    @Deprecated
+    public MethodType dropParameterType(int num) {
+        return dropParameterTypes(num, num+1);
+    }
+
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
      * @param nrtype a return parameter type to replace the old one with
      * @return the same type, except with the return type change
      */
@@ -291,6 +374,7 @@
 
     /** Convenience method.
      * Report if this type contains a primitive argument or return value.
+     * The return type {@code void} counts as a primitive.
      * @return true if any of the types are primitives
      */
     public boolean hasPrimitives() {
@@ -300,39 +384,47 @@
     /** Convenience method.
      * Report if this type contains a wrapper argument or return value.
      * Wrappers are types which box primitive values, such as {@link Integer}.
+     * The reference type {@code java.lang.Void} counts as a wrapper.
      * @return true if any of the types are wrappers
      */
     public boolean hasWrappers() {
         return unwrap() != this;
     }
 
-    /** Convenience method for {@link #make(java.lang.Class, java.lang.Class[])}.
-     * Erase all reference types to Object.
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
+     * Erase all reference types to {@code Object}.
+     * All primitive types (including {@code void}) will remain unchanged.
      * @return a version of the original type with all reference types replaced
      */
     public MethodType erase() {
         return form.erasedType();
     }
 
-    /** Convenience method for {@link #makeGeneric(int)}.
-     * Convert all types, both reference and primitive, to Object.
+    /** Convenience method for {@link #genericMethodType(int)}.
+     * Convert all types, both reference and primitive, to {@code Object}.
+     * The expression {@code type.wrap().erase()} produces the same value
+     * as {@code type.generic()}.
      * @return a version of the original type with all types replaced
      */
     public MethodType generic() {
-        return makeGeneric(parameterCount());
+        return genericMethodType(parameterCount());
     }
 
-    /** Convenience method for {@link #make(java.lang.Class, java.lang.Class[])}.
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
      * Convert all primitive types to their corresponding wrapper types.
+     * All reference types (including wrapper types) will remain unchanged.
      * A {@code void} return type is changed to the type {@code java.lang.Void}.
+     * The expression {@code type.wrap().erase()} produces the same value
+     * as {@code type.generic()}.
      * @return a version of the original type with all primitive types replaced
      */
     public MethodType wrap() {
         return hasPrimitives() ? wrapWithPrims(this) : this;
     }
 
-    /** Convenience method for {@link #make(java.lang.Class, java.lang.Class[])}.
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
      * Convert all wrapper types to their corresponding primitive types.
+     * All primitive types (including {@code void}) will remain unchanged.
      * A return type of {@code java.lang.Void} is changed to {@code void}.
      * @return a version of the original type with all wrapper types replaced
      */
@@ -391,6 +483,7 @@
 
     /**
      * Convenience method to present the arguments as an array.
+     * Changes to the array will not result in changes to the type.
      * @return the parameter types (as a fresh copy if necessary)
      */
     public Class<?>[] parameterArray() {
@@ -491,7 +584,7 @@
         return form.parameterSlotCount();
     }
 
-    /** Number of JVM stack slots which carry all parameters after
+    /** Number of JVM stack slots which carry all parameters including and after
      * the given position, which must be in the range of 0 to
      * {@code parameterCount} inclusive.  Successive parameters are
      * more shallowly stacked, and parameters are indexed in the bytecodes
@@ -532,7 +625,7 @@
         return form.returnSlotCount();
     }
 
-    /** Convenience method for {@link #make(java.lang.Class, java.lang.Class[])}.
+    /** Convenience method for {@link #methodType(java.lang.Class, java.lang.Class[])}.
      * Find or create an instance (interned) of the given method type.
      * Any class or interface name embedded in the signature string
      * will be resolved by calling {@link ClassLoader#loadClass(java.lang.String)}
@@ -544,16 +637,16 @@
      * <p>
      * This method is included for the benfit of applications that must
      * generate bytecodes that process method handles and invokedynamic.
-     * @param bytecodeSignature a bytecode-level signature string "(T...)T"
+     * @param descriptor a bytecode-level signature string "(T...)T"
      * @param loader the class loader in which to look up the types
      * @return a method type matching the bytecode-level signature
      * @throws IllegalArgumentException if the string is not well-formed
      * @throws TypeNotPresentException if a named type cannot be found
      */
-    public static MethodType fromBytecodeString(String bytecodeSignature, ClassLoader loader)
+    public static MethodType fromMethodDescriptorString(String descriptor, ClassLoader loader)
         throws IllegalArgumentException, TypeNotPresentException
     {
-        List<Class<?>> types = BytecodeSignature.parseMethod(bytecodeSignature, loader);
+        List<Class<?>> types = BytecodeDescriptor.parseMethod(descriptor, loader);
         Class<?> rtype = types.remove(types.size() - 1);
         Class<?>[] ptypes = types.toArray(NO_PTYPES);
         return makeImpl(rtype, ptypes, true);
@@ -565,11 +658,21 @@
      * <p>
      * This method is included for the benfit of applications that must
      * generate bytecodes that process method handles and invokedynamic.
-     * {@link #fromBytecodeString(java.lang.String, java.lang.ClassLoader)},
+     * {@link #fromMethodDescriptorString(java.lang.String, java.lang.ClassLoader)},
      * because the latter requires a suitable class loader argument.
      * @return the bytecode signature representation
      */
+    public String toMethodDescriptorString() {
+        return BytecodeDescriptor.unparse(this);
+    }
+
+    /** Temporary alias for toMethodDescriptorString; delete after M3. */
     public String toBytecodeString() {
-        return BytecodeSignature.unparse(this);
+        return toMethodDescriptorString();
+    }
+    /** Temporary alias for fromMethodDescriptorString; delete after M3. */
+    public static MethodType fromBytecodeString(String descriptor, ClassLoader loader)
+        throws IllegalArgumentException, TypeNotPresentException {
+        return fromMethodDescriptorString(descriptor, loader);
     }
 }

--- a/jdk/src/share/classes/java/dyn/package-info.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/java/dyn/package-info.java	Thu Jan 07 16:16:45 2010 -0800
@@ -24,6 +24,7 @@
  */
 
 /**
+ * <em>PROVISIONAL API, WORK IN PROGRESS:</em>
  * This package contains dynamic language support provided directly by
  * the Java core class libraries and virtual machine.
  * @author John Rose, JSR 292 EG

--- a/jdk/src/share/classes/sun/dyn/AdapterMethodHandle.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/sun/dyn/AdapterMethodHandle.java	Thu Jan 07 16:16:45 2010 -0800
@@ -30,7 +30,7 @@
 import java.dyn.*;
 import java.util.Arrays;
 import static sun.dyn.MethodHandleNatives.Constants.*;
-import static sun.dyn.MethodHandleImpl.newIllegalArgumentException;
+import static sun.dyn.MemberName.newIllegalArgumentException;
 
 /**
  * This method handle performs simple conversion or checking of a single argument.
@@ -302,7 +302,22 @@
      */
     private static int type2size(int type) {
         assert(type >= T_BOOLEAN && type <= T_OBJECT);
-        return (type == T_FLOAT || type == T_DOUBLE) ? 2 : 1;
+        return (type == T_LONG || type == T_DOUBLE) ? 2 : 1;
+    }
+    private static int type2size(Class<?> type) {
+        return type2size(basicType(type));
+    }
+
+    /** The given stackMove is the number of slots pushed.
+     * It might be negative.  Scale it (multiply) by the
+     * VM's notion of how an address changes with a push,
+     * to get the raw SP change for stackMove.
+     * Then shift and mask it into the correct field.
+     */
+    private static long insertStackMove(int stackMove) {
+        // following variable must be long to avoid sign extension after '<<'
+        long spChange = stackMove * MethodHandleNatives.JVM_STACK_MOVE_UNIT;
+        return (spChange & CONV_STACK_MOVE_MASK) << CONV_STACK_MOVE_SHIFT;
     }
 
     /** Construct an adapter conversion descriptor for a single-argument conversion. */
@@ -310,16 +325,16 @@
         assert(src  == (src  & 0xF));
         assert(dest == (dest & 0xF));
         assert(convOp >= OP_CHECK_CAST && convOp <= OP_PRIM_TO_REF);
-        long stackMove = type2size(dest) - type2size(src);
+        int stackMove = type2size(dest) - type2size(src);
         return ((long) argnum << 32 |
                 (long) convOp << CONV_OP_SHIFT |
                 (int)  src    << CONV_SRC_TYPE_SHIFT |
                 (int)  dest   << CONV_DEST_TYPE_SHIFT |
-                stackMove     << CONV_STACK_MOVE_SHIFT
+                insertStackMove(stackMove)
                 );
     }
     private static long makeConv(int convOp, int argnum, int stackMove) {
-        assert(convOp >= OP_SWAP_ARGS && convOp <= OP_SPREAD_ARGS);
+        assert(convOp >= OP_DUP_ARGS && convOp <= OP_SPREAD_ARGS);
         byte src = 0, dest = 0;
         if (convOp >= OP_COLLECT_ARGS && convOp <= OP_SPREAD_ARGS)
             src = dest = T_OBJECT;
@@ -327,12 +342,21 @@
                 (long) convOp << CONV_OP_SHIFT |
                 (int)  src    << CONV_SRC_TYPE_SHIFT |
                 (int)  dest   << CONV_DEST_TYPE_SHIFT |
-                stackMove     << CONV_STACK_MOVE_SHIFT
+                insertStackMove(stackMove)
+                );
+    }
+    private static long makeSwapConv(int convOp, int srcArg, byte type, int destSlot) {
+        assert(convOp >= OP_SWAP_ARGS && convOp <= OP_ROT_ARGS);
+        return ((long) srcArg << 32 |
+                (long) convOp << CONV_OP_SHIFT |
+                (int)  type   << CONV_SRC_TYPE_SHIFT |
+                (int)  type   << CONV_DEST_TYPE_SHIFT |
+                (int)  destSlot << CONV_VMINFO_SHIFT
                 );
     }
     private static long makeConv(int convOp) {
-        assert(convOp == OP_RETYPE_ONLY);
-        return (long) convOp << CONV_OP_SHIFT;   // stackMove, src, dst, argnum all zero
+        assert(convOp == OP_RETYPE_ONLY || convOp == OP_RETYPE_RAW);
+        return ((long)-1 << 32) | (convOp << CONV_OP_SHIFT);   // stackMove, src, dst all zero
     }
     private static int convCode(long conv) {
         return (int)conv;
@@ -348,16 +372,6 @@
     /** One of OP_RETYPE_ONLY, etc. */
     int conversionOp() { return (conversion & CONV_OP_MASK) >> CONV_OP_SHIFT; }
 
-    @Override
-    public String toString() {
-        return addTypeString(this, "Adapted[" + basicToString(nonAdapter((MethodHandle)vmtarget)) + "]");
-    }
-
-    private static MethodHandle nonAdapter(MethodHandle mh) {
-        return (MethodHandle)
-            MethodHandleNatives.getTarget(mh, ETF_DIRECT_HANDLE);
-    }
-
     /* Return one plus the position of the first non-trivial difference
      * between the given types.  This is not a symmetric operation;
      * we are considering adapting the targetType to adapterType.
@@ -399,14 +413,14 @@
         //if (false)  return 1;  // never adaptable!
         return -1;  // some significant difference
     }
-    private static int diffParamTypes(MethodType adapterType, int tstart,
-                                      MethodType targetType, int astart,
+    private static int diffParamTypes(MethodType adapterType, int astart,
+                                      MethodType targetType, int tstart,
                                       int nargs, boolean raw) {
         assert(nargs >= 0);
         int res = 0;
         for (int i = 0; i < nargs; i++) {
-            Class<?> src  = adapterType.parameterType(tstart+i);
-            Class<?> dest = targetType.parameterType(astart+i);
+            Class<?> src  = adapterType.parameterType(astart+i);
+            Class<?> dest = targetType.parameterType(tstart+i);
             if ((!raw
                  ? VerifyType.canPassUnchecked(src, dest)
                  : VerifyType.canPassRaw(src, dest)
@@ -422,7 +436,7 @@
 
     /** Can a retyping adapter (alone) validly convert the target to newType? */
     public static boolean canRetypeOnly(MethodType newType, MethodType targetType) {
-        return canRetypeOnly(newType, targetType, false);
+        return canRetype(newType, targetType, false);
     }
     /** Can a retyping adapter (alone) convert the target to newType?
      *  It is allowed to widen subword types and void to int, to make bitwise
@@ -430,14 +444,14 @@
      *  reference conversions on return.  This last feature requires that the
      *  caller be trusted, and perform explicit cast conversions on return values.
      */
-    static boolean canRawRetypeOnly(MethodType newType, MethodType targetType) {
-        return canRetypeOnly(newType, targetType, true);
+    public static boolean canRetypeRaw(MethodType newType, MethodType targetType) {
+        return canRetype(newType, targetType, true);
     }
-    static boolean canRetypeOnly(MethodType newType, MethodType targetType, boolean raw) {
-        if (!convOpSupported(OP_RETYPE_ONLY))  return false;
+    static boolean canRetype(MethodType newType, MethodType targetType, boolean raw) {
+        if (!convOpSupported(raw ? OP_RETYPE_RAW : OP_RETYPE_ONLY))  return false;
         int diff = diffTypes(newType, targetType, raw);
         // %%% This assert is too strong.  Factor diff into VerifyType and reconcile.
-        assert((diff == 0) == VerifyType.isNullConversion(newType, targetType));
+        assert(raw || (diff == 0) == VerifyType.isNullConversion(newType, targetType));
         return diff == 0;
     }
 
@@ -447,19 +461,21 @@
      */
     public static MethodHandle makeRetypeOnly(Access token,
                 MethodType newType, MethodHandle target) {
-        return makeRetypeOnly(token, newType, target, false);
+        return makeRetype(token, newType, target, false);
     }
-    public static MethodHandle makeRawRetypeOnly(Access token,
+    public static MethodHandle makeRetypeRaw(Access token,
                 MethodType newType, MethodHandle target) {
-        return makeRetypeOnly(token, newType, target, true);
+        return makeRetype(token, newType, target, true);
     }
-    static MethodHandle makeRetypeOnly(Access token,
+    static MethodHandle makeRetype(Access token,
                 MethodType newType, MethodHandle target, boolean raw) {
         Access.check(token);
-        if (!canRetypeOnly(newType, target.type(), raw))
+        MethodType oldType = target.type();
+        if (oldType == newType)  return target;
+        if (!canRetype(newType, oldType, raw))
             return null;
         // TO DO:  clone the target guy, whatever he is, with new type.
-        return new AdapterMethodHandle(target, newType, makeConv(OP_RETYPE_ONLY));
+        return new AdapterMethodHandle(target, newType, makeConv(raw ? OP_RETYPE_RAW : OP_RETYPE_ONLY));
     }
 
     /** Can a checkcast adapter validly convert the target to newType?
@@ -492,7 +508,7 @@
         Access.check(token);
         if (!canCheckCast(newType, target.type(), arg, castType))
             return null;
-        long conv = makeConv(OP_CHECK_CAST, arg, 0);
+        long conv = makeConv(OP_CHECK_CAST, arg, T_OBJECT, T_OBJECT);
         return new AdapterMethodHandle(target, newType, conv, castType);
     }
 
@@ -537,10 +553,9 @@
                 int arg, Class<?> convType) {
         Access.check(token);
         MethodType oldType = target.type();
-        Class<?> src = newType.parameterType(arg);
-        Class<?> dst = oldType.parameterType(arg);
         if (!canPrimCast(newType, oldType, arg, convType))
             return null;
+        Class<?> src = newType.parameterType(arg);
         long conv = makeConv(OP_PRIM_TO_PRIM, arg, basicType(src), basicType(convType));
         return new AdapterMethodHandle(target, newType, conv);
     }
@@ -607,8 +622,6 @@
         return null;
     }
 
-    // TO DO: makeSwapArguments, makeRotateArguments, makeDuplicateArguments
-
     /** Can an adapter simply drop arguments to convert the target to newType? */
     public static boolean canDropArguments(MethodType newType, MethodType targetType,
                 int dropArgPos, int dropArgCount) {
@@ -643,26 +656,195 @@
         Access.check(token);
         if (dropArgCount == 0)
             return makeRetypeOnly(IMPL_TOKEN, newType, target);
-        MethodType mt = target.type();
-        int argCount  = mt.parameterCount();
-        if (!canDropArguments(newType, mt, dropArgPos, dropArgCount))
+        if (!canDropArguments(newType, target.type(), dropArgPos, dropArgCount))
+            return null;
+        // in  arglist: [0: ...keep1 | dpos: drop... | dpos+dcount: keep2... ]
+        // out arglist: [0: ...keep1 |                        dpos: keep2... ]
+        int keep2InPos  = dropArgPos + dropArgCount;
+        int dropSlot    = newType.parameterSlotDepth(keep2InPos);
+        int keep1InSlot = newType.parameterSlotDepth(dropArgPos);
+        int slotCount   = keep1InSlot - dropSlot;
+        assert(slotCount >= dropArgCount);
+        assert(target.type().parameterSlotCount() + slotCount == newType.parameterSlotCount());
+        long conv = makeConv(OP_DROP_ARGS, dropArgPos + dropArgCount - 1, -slotCount);
+        return new AdapterMethodHandle(target, newType, conv);
+    }
+
+    /** Can an adapter duplicate an argument to convert the target to newType? */
+    public static boolean canDupArguments(MethodType newType, MethodType targetType,
+                int dupArgPos, int dupArgCount) {
+        if (!convOpSupported(OP_DUP_ARGS))  return false;
+        if (diffReturnTypes(newType, targetType, false) != 0)
+            return false;
+        int nptypes = newType.parameterCount();
+        if (dupArgCount < 0 || dupArgPos + dupArgCount > nptypes)
+            return false;
+        if (targetType.parameterCount() != nptypes + dupArgCount)
+            return false;
+        // parameter types must be the same up to the duplicated arguments
+        if (diffParamTypes(newType, 0, targetType, 0, nptypes, false) != 0)
+            return false;
+        // duplicated types must be, well, duplicates
+        if (diffParamTypes(newType, dupArgPos, targetType, nptypes, dupArgCount, false) != 0)
+            return false;
+        return true;
+    }
+
+    /** Factory method:  Duplicate the selected argument.
+     *  Return null if this is not possible.
+     */
+    public static MethodHandle makeDupArguments(Access token,
+                MethodType newType, MethodHandle target,
+                int dupArgPos, int dupArgCount) {
+        Access.check(token);
+        if (!canDupArguments(newType, target.type(), dupArgPos, dupArgCount))
             return null;
-        int dropSlotCount, dropSlotPos;
-        if (dropArgCount >= argCount) {
-            assert(dropArgPos == argCount-1);
-            dropSlotPos = 0;
-            dropSlotCount = mt.parameterSlotCount();
+        if (dupArgCount == 0)
+            return target;
+        // in  arglist: [0: ...keep1 | dpos: dup... | dpos+dcount: keep2... ]
+        // out arglist: [0: ...keep1 | dpos: dup... | dpos+dcount: keep2... | dup... ]
+        int keep2InPos  = dupArgPos + dupArgCount;
+        int dupSlot     = newType.parameterSlotDepth(keep2InPos);
+        int keep1InSlot = newType.parameterSlotDepth(dupArgPos);
+        int slotCount   = keep1InSlot - dupSlot;
+        assert(target.type().parameterSlotCount() - slotCount == newType.parameterSlotCount());
+        long conv = makeConv(OP_DUP_ARGS, dupArgPos + dupArgCount - 1, slotCount);
+        return new AdapterMethodHandle(target, newType, conv);
+    }
+
+    /** Can an adapter swap two arguments to convert the target to newType? */
+    public static boolean canSwapArguments(MethodType newType, MethodType targetType,
+                int swapArg1, int swapArg2) {
+        if (!convOpSupported(OP_SWAP_ARGS))  return false;
+        if (diffReturnTypes(newType, targetType, false) != 0)
+            return false;
+        if (swapArg1 >= swapArg2)  return false;  // caller resp
+        int nptypes = newType.parameterCount();
+        if (targetType.parameterCount() != nptypes)
+            return false;
+        if (swapArg1 < 0 || swapArg2 >= nptypes)
+            return false;
+        if (diffParamTypes(newType, 0, targetType, 0, swapArg1, false) != 0)
+            return false;
+        if (diffParamTypes(newType, swapArg1, targetType, swapArg2, 1, false) != 0)
+            return false;
+        if (diffParamTypes(newType, swapArg1+1, targetType, swapArg1+1, swapArg2-swapArg1-1, false) != 0)
+            return false;
+        if (diffParamTypes(newType, swapArg2, targetType, swapArg1, 1, false) != 0)
+            return false;
+        if (diffParamTypes(newType, swapArg2+1, targetType, swapArg2+1, nptypes-swapArg2-1, false) != 0)
+            return false;
+        return true;
+    }
+
+    /** Factory method:  Swap the selected arguments.
+     *  Return null if this is not possible.
+     */
+    public static MethodHandle makeSwapArguments(Access token,
+                MethodType newType, MethodHandle target,
+                int swapArg1, int swapArg2) {
+        Access.check(token);
+        if (swapArg1 == swapArg2)
+            return target;
+        if (swapArg1 > swapArg2) { int t = swapArg1; swapArg1 = swapArg2; swapArg2 = t; }
+        if (!canSwapArguments(newType, target.type(), swapArg1, swapArg2))
+            return null;
+        Class<?> swapType = newType.parameterType(swapArg1);
+        // in  arglist: [0: ...keep1 | pos1: a1 | pos1+1: keep2... | pos2: a2 | pos2+1: keep3... ]
+        // out arglist: [0: ...keep1 | pos1: a2 | pos1+1: keep2... | pos2: a1 | pos2+1: keep3... ]
+        int swapSlot2  = newType.parameterSlotDepth(swapArg2 + 1);
+        long conv = makeSwapConv(OP_SWAP_ARGS, swapArg1, basicType(swapType), swapSlot2);
+        return new AdapterMethodHandle(target, newType, conv);
+    }
+
+    static int positiveRotation(int argCount, int rotateBy) {
+        assert(argCount > 0);
+        if (rotateBy >= 0) {
+            if (rotateBy < argCount)
+                return rotateBy;
+            return rotateBy % argCount;
+        } else if (rotateBy >= -argCount) {
+            return rotateBy + argCount;
         } else {
-            // arglist: [0: keep... | dpos: drop... | dpos+dcount: keep... ]
-            int lastDroppedArg = dropArgPos + dropArgCount - 1;
-            int lastKeptArg    = dropArgPos - 1;  // might be -1, which is OK
-            dropSlotPos      = mt.parameterSlotDepth(1+lastDroppedArg);
-            int lastKeptSlot = mt.parameterSlotDepth(1+lastKeptArg);
-            dropSlotCount = lastKeptSlot - dropSlotPos;
-            assert(dropSlotCount >= dropArgCount);
+            return (-1-((-1-rotateBy) % argCount)) + argCount;
         }
-        long conv = makeConv(OP_DROP_ARGS, dropArgPos, +dropSlotCount);
-        return new AdapterMethodHandle(target, newType, dropSlotCount, conv);
+    }
+
+    final static int MAX_ARG_ROTATION = 1;
+
+    /** Can an adapter rotate arguments to convert the target to newType? */
+    public static boolean canRotateArguments(MethodType newType, MethodType targetType,
+                int firstArg, int argCount, int rotateBy) {
+        if (!convOpSupported(OP_ROT_ARGS))  return false;
+        if (argCount <= 2)  return false;  // must be a swap, not a rotate
+        rotateBy = positiveRotation(argCount, rotateBy);
+        if (rotateBy == 0)  return false;  // no rotation
+        if (rotateBy > MAX_ARG_ROTATION && rotateBy < argCount - MAX_ARG_ROTATION)
+            return false;  // too many argument positions
+        // Rotate incoming args right N to the out args, N in 1..(argCouunt-1).
+        if (diffReturnTypes(newType, targetType, false) != 0)
+            return false;
+        int nptypes = newType.parameterCount();
+        if (targetType.parameterCount() != nptypes)
+            return false;
+        if (firstArg < 0 || firstArg >= nptypes)  return false;
+        int argLimit = firstArg + argCount;
+        if (argLimit > nptypes)  return false;
+        if (diffParamTypes(newType, 0, targetType, 0, firstArg, false) != 0)
+            return false;
+        int newChunk1 = argCount - rotateBy, newChunk2 = rotateBy;
+        // swap new chunk1 with target chunk2
+        if (diffParamTypes(newType, firstArg, targetType, argLimit-newChunk1, newChunk1, false) != 0)
+            return false;
+        // swap new chunk2 with target chunk1
+        if (diffParamTypes(newType, firstArg+newChunk1, targetType, firstArg, newChunk2, false) != 0)
+            return false;
+        return true;
+    }
+
+    /** Factory method:  Rotate the selected argument range.
+     *  Return null if this is not possible.
+     */
+    public static MethodHandle makeRotateArguments(Access token,
+                MethodType newType, MethodHandle target,
+                int firstArg, int argCount, int rotateBy) {
+        Access.check(token);
+        rotateBy = positiveRotation(argCount, rotateBy);
+        if (!canRotateArguments(newType, target.type(), firstArg, argCount, rotateBy))
+            return null;
+        // Decide whether it should be done as a right or left rotation,
+        // on the JVM stack.  Return the number of stack slots to rotate by,
+        // positive if right, negative if left.
+        int limit = firstArg + argCount;
+        int depth0 = newType.parameterSlotDepth(firstArg);
+        int depth1 = newType.parameterSlotDepth(limit-rotateBy);
+        int depth2 = newType.parameterSlotDepth(limit);
+        int chunk1Slots = depth0 - depth1; assert(chunk1Slots > 0);
+        int chunk2Slots = depth1 - depth2; assert(chunk2Slots > 0);
+        // From here on out, it assumes a single-argument shift.
+        assert(MAX_ARG_ROTATION == 1);
+        int srcArg, dstArg;
+        byte basicType;
+        if (chunk2Slots <= chunk1Slots) {
+            // Rotate right/down N (rotateBy = +N, N small, c2 small):
+            // in  arglist: [0: ...keep1 | arg1: c1...  | limit-N: c2 | limit: keep2... ]
+            // out arglist: [0: ...keep1 | arg1: c2 | arg1+N: c1...   | limit: keep2... ]
+            srcArg = limit-1;
+            dstArg = firstArg;
+            basicType = basicType(newType.parameterType(srcArg));
+            assert(chunk2Slots == type2size(basicType));
+        } else {
+            // Rotate left/up N (rotateBy = -N, N small, c1 small):
+            // in  arglist: [0: ...keep1 | arg1: c1 | arg1+N: c2...   | limit: keep2... ]
+            // out arglist: [0: ...keep1 | arg1: c2 ... | limit-N: c1 | limit: keep2... ]
+            srcArg = firstArg;
+            dstArg = limit-1;
+            basicType = basicType(newType.parameterType(srcArg));
+            assert(chunk1Slots == type2size(basicType));
+        }
+        int dstSlot = newType.parameterSlotDepth(dstArg + 1);
+        long conv = makeSwapConv(OP_ROT_ARGS, srcArg, basicType, dstSlot);
+        return new AdapterMethodHandle(target, newType, conv);
     }
 
     /** Can an adapter spread an argument to convert the target to newType? */
@@ -676,10 +858,10 @@
         if (spreadArgPos != 0 && diffParamTypes(newType, 0, targetType, 0, spreadArgPos, false) != 0)
             return false;
         int afterPos = spreadArgPos + spreadArgCount;
-        int afterCount = nptypes - afterPos;
+        int afterCount = nptypes - (spreadArgPos + 1);
         if (spreadArgPos < 0 || spreadArgPos >= nptypes ||
             spreadArgCount < 0 ||
-            targetType.parameterCount() != nptypes - 1 + spreadArgCount)
+            targetType.parameterCount() != afterPos + afterCount)
             return false;
         // parameter types after the spread point must also be the same
         if (afterCount != 0 && diffParamTypes(newType, spreadArgPos+1, targetType, afterPos, afterCount, false) != 0)
@@ -697,32 +879,40 @@
         return true;
     }
 
+
     /** Factory method:  Spread selected argument. */
     public static MethodHandle makeSpreadArguments(Access token,
                 MethodType newType, MethodHandle target,
                 Class<?> spreadArgType, int spreadArgPos, int spreadArgCount) {
         Access.check(token);
-        MethodType mt = target.type();
-        int argCount  = mt.parameterCount();
-        if (!canSpreadArguments(newType, mt, spreadArgType, spreadArgPos, spreadArgCount))
+        MethodType targetType = target.type();
+        if (!canSpreadArguments(newType, targetType, spreadArgType, spreadArgPos, spreadArgCount))
             return null;
-        int spreadSlotCount, spreadSlotPos;
-        if (spreadArgCount >= argCount) {
-            assert(spreadArgPos == argCount-1);
-            spreadSlotPos = 0;
-            spreadSlotCount = mt.parameterSlotCount();
-        } else {
-            // arglist: [0: keep... | dpos: spread... | dpos+dcount: keep... ]
-            int lastSpreadArg = spreadArgPos + spreadArgCount - 1;
-            int lastKeptArg   = spreadArgPos - 1;  // might be -1, which is OK
-            spreadSlotPos     = mt.parameterSlotDepth(1+lastSpreadArg);
-            int lastKeptSlot  = mt.parameterSlotDepth(1+lastKeptArg);
-            spreadSlotCount = lastKeptSlot - spreadSlotPos;
-            assert(spreadSlotCount >= spreadArgCount);
-        }
-        long conv = makeConv(OP_SPREAD_ARGS, spreadArgPos, spreadSlotCount);
-        return new AdapterMethodHandle(target, newType, conv, spreadArgType);
+        // in  arglist: [0: ...keep1 | spos: spreadArg | spos+1:      keep2... ]
+        // out arglist: [0: ...keep1 | spos: spread... | spos+scount: keep2... ]
+        int keep2OutPos  = spreadArgPos + spreadArgCount;
+        int spreadSlot   = targetType.parameterSlotDepth(keep2OutPos);
+        int keep1OutSlot = targetType.parameterSlotDepth(spreadArgPos);
+        int slotCount    = keep1OutSlot - spreadSlot;
+        assert(spreadSlot == newType.parameterSlotDepth(spreadArgPos+1));
+        assert(slotCount >= spreadArgCount);
+        long conv = makeConv(OP_SPREAD_ARGS, spreadArgPos, slotCount-1);
+        MethodHandle res = new AdapterMethodHandle(target, newType, conv, spreadArgType);
+        assert(res.type().parameterType(spreadArgPos) == spreadArgType);
+        return res;
     }
 
     // TO DO: makeCollectArguments, makeFlyby, makeRicochet
+
+    @Override
+    public String toString() {
+        return nonAdapter((MethodHandle)vmtarget).toString();
+    }
+
+    private static MethodHandle nonAdapter(MethodHandle mh) {
+        while (mh instanceof AdapterMethodHandle) {
+            mh = (MethodHandle) mh.vmtarget;
+        }
+        return mh;
+    }
 }

--- a/jdk/src/share/classes/sun/dyn/BoundMethodHandle.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/sun/dyn/BoundMethodHandle.java	Thu Jan 07 16:16:45 2010 -0800
@@ -28,6 +28,10 @@
 import sun.dyn.util.VerifyType;
 import sun.dyn.util.Wrapper;
 import java.dyn.*;
+import java.util.List;
+import sun.dyn.MethodHandleNatives.Constants;
+import static sun.dyn.MethodHandleImpl.IMPL_LOOKUP;
+import static sun.dyn.MemberName.newIllegalArgumentException;
 
 /**
  * The flavor of method handle which emulates an invoke instruction
@@ -35,18 +39,23 @@
  * when the handle is created, not when it is invoked.
  * @author jrose
  */
-public class BoundMethodHandle extends MethodHandle  {
+public class BoundMethodHandle extends MethodHandle {
     //MethodHandle vmtarget;           // next BMH or final DMH or methodOop
     private final Object argument;     // argument to insert
     private final int    vmargslot;    // position at which it is inserted
 
+    private static final Access IMPL_TOKEN = Access.getToken();
+    private static final MemberName.Factory IMPL_NAMES = MemberName.getFactory(IMPL_TOKEN);
+
     // Constructors in this class *must* be package scoped or private.
+    // Exception:  JavaMethodHandle constructors are protected.
+    // (The link between JMH and BMH is temporary.)
 
     /** Bind a direct MH to its receiver (or first ref. argument).
      *  The JVM will pre-dispatch the MH if it is not already static.
      */
     BoundMethodHandle(DirectMethodHandle mh, Object argument) {
-        super(Access.TOKEN, mh.type().dropParameterType(0));
+        super(Access.TOKEN, mh.type().dropParameterTypes(0, 1));
         // check the type now, once for all:
         this.argument = checkReferenceArgument(argument, mh, 0);
         this.vmargslot = this.type().parameterSlotCount();
@@ -56,32 +65,34 @@
         } else {
             this.vmtarget = mh;
         }
-     }
-
-    private static final int REF_ARG = 0, PRIM_ARG = 1, SELF_ARG = 2;
+    }
 
     /** Insert an argument into an arbitrary method handle.
      *  If argnum is zero, inserts the first argument, etc.
      *  The argument type must be a reference.
      */
     BoundMethodHandle(MethodHandle mh, Object argument, int argnum) {
-        this(mh, argument, argnum, mh.type().parameterType(argnum).isPrimitive() ? PRIM_ARG : REF_ARG);
+        this(mh.type().dropParameterTypes(argnum, argnum+1),
+             mh, argument, argnum);
     }
 
     /** Insert an argument into an arbitrary method handle.
      *  If argnum is zero, inserts the first argument, etc.
      */
-    BoundMethodHandle(MethodHandle mh, Object argument, int argnum, int whichArg) {
-        super(Access.TOKEN, mh.type().dropParameterType(argnum));
-        if (whichArg == PRIM_ARG)
+    BoundMethodHandle(MethodType type, MethodHandle mh, Object argument, int argnum) {
+        super(Access.TOKEN, type);
+        if (mh.type().parameterType(argnum).isPrimitive())
             this.argument = bindPrimitiveArgument(argument, mh, argnum);
         else {
-            if (whichArg == SELF_ARG)  argument = this;
             this.argument = checkReferenceArgument(argument, mh, argnum);
         }
-        this.vmargslot = this.type().parameterSlotDepth(argnum);
+        this.vmargslot = type.parameterSlotDepth(argnum);
+        initTarget(mh, argnum);
+    }
+
+    private void initTarget(MethodHandle mh, int argnum) {
         if (MethodHandleNatives.JVM_SUPPORT) {
-            this.vmtarget = null;  // maybe updated by JVM
+            this.vmtarget = null; // maybe updated by JVM
             MethodHandleNatives.init(this, mh, argnum);
         } else {
             this.vmtarget = mh;
@@ -97,29 +108,65 @@
         assert(this.getClass() == AdapterMethodHandle.class);
     }
 
-    /** Initialize the current object as a method handle, binding it
-     *  as the {@code argnum}th argument of the method handle {@code entryPoint}.
-     *  The invocation type of the resulting method handle will be the
-     *  same as {@code entryPoint},  except that the {@code argnum}th argument
-     *  type will be dropped.
-     */
-    public BoundMethodHandle(MethodHandle entryPoint, int argnum) {
-        this(entryPoint, null, argnum, SELF_ARG);
-
-        // Note:  If the conversion fails, perhaps because of a bad entryPoint,
-        // the MethodHandle.type field will not be filled in, and therefore
-        // no MH.invoke call will ever succeed.  The caller may retain a pointer
-        // to the broken method handle, but no harm can be done with it.
-    }
-
-    /** Initialize the current object as a method handle, binding it
+    /** Initialize the current object as a Java method handle, binding it
      *  as the first argument of the method handle {@code entryPoint}.
      *  The invocation type of the resulting method handle will be the
      *  same as {@code entryPoint},  except that the first argument
      *  type will be dropped.
      */
-    public BoundMethodHandle(MethodHandle entryPoint) {
-        this(entryPoint, null, 0, SELF_ARG);
+    protected BoundMethodHandle(MethodHandle entryPoint) {
+        super(Access.TOKEN, entryPoint.type().dropParameterTypes(0, 1));
+        this.argument = this; // kludge; get rid of
+        this.vmargslot = this.type().parameterSlotDepth(0);
+        initTarget(entryPoint, 0);
+        assert(this instanceof JavaMethodHandle);
+    }
+
+    /** Initialize the current object as a Java method handle.
+     */
+    protected BoundMethodHandle(String entryPointName, MethodType type, boolean matchArity) {
+        super(Access.TOKEN, null);
+        MethodHandle entryPoint
+                = findJavaMethodHandleEntryPoint(this.getClass(),
+                                        entryPointName, type, matchArity);
+        MethodHandleImpl.initType(this, entryPoint.type().dropParameterTypes(0, 1));
+        this.argument = this; // kludge; get rid of
+        this.vmargslot = this.type().parameterSlotDepth(0);
+        initTarget(entryPoint, 0);
+        assert(this instanceof JavaMethodHandle);
+    }
+
+    private static
+    MethodHandle findJavaMethodHandleEntryPoint(Class<?> caller,
+                                                String name,
+                                                MethodType type,
+                                                boolean matchArity) {
+        if (matchArity)  type.getClass();  // elicit NPE
+        List<MemberName> methods = IMPL_NAMES.getMethods(caller, true, name, null, caller);
+        MethodType foundType = null;
+        MemberName foundMethod = null;
+        for (MemberName method : methods) {
+            MethodType mtype = method.getMethodType();
+            if (type != null && type.parameterCount() != mtype.parameterCount())
+                continue;
+            else if (foundType == null)
+                foundType = mtype;
+            else if (foundType != mtype)
+                throw newIllegalArgumentException("more than one method named "+name+" in "+caller.getName());
+            // discard overrides
+            if (foundMethod == null)
+                foundMethod = method;
+            else if (foundMethod.getDeclaringClass().isAssignableFrom(method.getDeclaringClass()))
+                foundMethod = method;
+        }
+        if (foundMethod == null)
+            throw newIllegalArgumentException("no method named "+name+" in "+caller.getName());
+        MethodHandle entryPoint = MethodHandleImpl.findMethod(IMPL_TOKEN, foundMethod, true, caller);
+        if (type != null) {
+            MethodType epType = type.insertParameterTypes(0, entryPoint.type().parameterType(0));
+            entryPoint = MethodHandles.convertArguments(entryPoint, epType);
+        }
+        return entryPoint;
     }
 
     /** Make sure the given {@code argument} can be used as {@code argnum}-th
@@ -175,6 +222,24 @@
 
     @Override
     public String toString() {
-        return "Bound[" + super.toString() + "]";
+        MethodHandle mh = this;
+        while (mh instanceof BoundMethodHandle) {
+            Object info = MethodHandleNatives.getTargetInfo(mh);
+            if (info instanceof MethodHandle) {
+                mh = (MethodHandle) info;
+            } else {
+                String name = null;
+                if (info instanceof MemberName)
+                    name = ((MemberName)info).getName();
+                if (name != null)
+                    return name;
+                else
+                    return super.toString(); // <unknown>, probably
+            }
+            assert(mh != this);
+            if (mh instanceof JavaMethodHandle)
+                break;  // access JMH.toString(), not BMH.toString()
+        }
+        return mh.toString();
     }
 }

--- a/jdk/src/share/classes/sun/dyn/CallSiteImpl.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/sun/dyn/CallSiteImpl.java	Thu Jan 07 16:16:45 2010 -0800
@@ -26,34 +26,51 @@
 package sun.dyn;
 
 import java.dyn.*;
+import java.util.logging.Level;
+import java.util.logging.Logger;
 
 /**
- * The CallSite privately created by the JVM at every invokedynamic instruction.
+ * Parts of CallSite known to the JVM.
+ * FIXME: Merge all this into CallSite proper.
  * @author jrose
  */
-class CallSiteImpl extends CallSite {
-    // Fields used only by the JVM.  Do not use or change.
+public class CallSiteImpl {
+    // Field used only by the JVM.  Do not use or change.
     private Object vmmethod;
 
     // Values supplied by the JVM:
-    int callerMID, callerBCI;
+    protected int callerMID, callerBCI;
+
+    private MethodHandle target;
+    protected final Object caller;  // usually a class
+    protected final String name;
+    protected final MethodType type;
 
-    private CallSiteImpl(Class<?> caller, String name, MethodType type) {
-        super(caller, name, type);
+    /** called only directly from CallSite() */
+    protected CallSiteImpl(Access token, Object caller, String name, MethodType type) {
+        Access.check(token);
+        this.caller = caller;
+        this.name = name;
+        this.type = type;
     }
 
-    @Override
-    public void setTarget(MethodHandle mh) {
-        checkTarget(mh);
-        if (MethodHandleNatives.JVM_SUPPORT)
-            MethodHandleNatives.linkCallSite(this, (MethodHandle) mh);
-        else
-            super.setTarget(mh);
+    /** native version of setTarget */
+    protected void setTarget(MethodHandle mh) {
+        //System.out.println("setTarget "+this+" := "+mh);
+        // XXX I don't know how to fix this properly.
+//         if (false && MethodHandleNatives.JVM_SUPPORT) // FIXME: enable this
+//             MethodHandleNatives.linkCallSite(this, mh);
+//         else
+            this.target = mh;
+    }
+
+    protected MethodHandle getTarget() {
+        return target;
     }
 
     private static final MethodHandle PRIVATE_INITIALIZE_CALL_SITE =
             MethodHandleImpl.IMPL_LOOKUP.findStatic(CallSite.class, "privateInitializeCallSite",
-                MethodType.make(void.class, CallSite.class, int.class, int.class));
+                MethodType.methodType(void.class, CallSite.class, int.class, int.class));
 
     // this is the up-call from the JVM:
     static CallSite makeSite(Class<?> caller, String name, MethodType type,
@@ -61,10 +78,25 @@
         MethodHandle bsm = Linkage.getBootstrapMethod(caller);
         if (bsm == null)
             throw new InvokeDynamicBootstrapError("class has no bootstrap method: "+caller);
-        CallSite site = bsm.<CallSite>invoke(caller, name, type);
+        CallSite site;
+        try {
+            site = bsm.<CallSite>invoke(caller, name, type);
+        } catch (Throwable ex) {
+            throw new InvokeDynamicBootstrapError("exception thrown while linking", ex);
+        }
         if (site == null)
             throw new InvokeDynamicBootstrapError("class bootstrap method failed to create a call site: "+caller);
-        PRIVATE_INITIALIZE_CALL_SITE.<void>invoke(site, callerMID, callerBCI);
+        if (site.type() != type)
+            throw new InvokeDynamicBootstrapError("call site type not initialized correctly: "+site);
+        if (site.callerClass() != caller)
+            throw new InvokeDynamicBootstrapError("call site caller not initialized correctly: "+site);
+        if ((Object)site.name() != name)
+            throw new InvokeDynamicBootstrapError("call site name not initialized correctly: "+site);
+        try {
+            PRIVATE_INITIALIZE_CALL_SITE.<void>invoke(site, callerMID, callerBCI);
+        } catch (Throwable ex) {
+            throw new InvokeDynamicBootstrapError("call site initialization exception", ex);
+        }
         return site;
     }
 }

--- a/jdk/src/share/classes/sun/dyn/FilterGeneric.java	Wed Jan 06 16:50:51 2010 -0800
+++ b/jdk/src/share/classes/sun/dyn/FilterGeneric.java	Thu Jan 07 16:16:45 2010 -0800
@@ -31,174 +31,159 @@
 import java.dyn.NoAccessException;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.InvocationTargetException;
+import static sun.dyn.MemberName.newIllegalArgumentException;
 
 /**
- * "Flyby adapters" which apply arbitrary conversions to arguments
+ * These adapters apply arbitrary conversions to arguments
  * on the way to a ultimate target.
  * For simplicity, these are all generically typed.
  * @author jrose
  */
 class FilterGeneric {
-    // type for the outgoing call (will be generic)
-    private final MethodType targetType;
-    // position of (first) argument to participate in filtering
-    private final short argumentPosition;
-    // number of arguments to participate in filtering
-    private final short argumentCount;
-    // how the result interacts with the filtered arguments: Prepend, Append, Replace, Discard
-    private final char replaceMode;
-    // prototype adapter (clone and customize for each new target & conversion!)
-    private final Adapter adapter;
-    // entry point for adapter (Adapter mh, a...) => ...
-    private final MethodHandle entryPoint;
-    // more of them (loosely cached)
-    private FilterGeneric variations;
+    // type for the incoming call (will be generic)
+    private final MethodType entryType;
+    // prototype adapters (clone and customize for each new target & conversion!)
+    private final Adapter[] adapters;
 
-    /** Compute and cache information common to all unboxing adapters
-     *  that can call out to targets of the erasure-family of the given erased type.
+    /** Compute and cache information common to all filtering adapters
+     *  with the given generic type
      */
-    // TO DO: Make this private.
-    FilterGeneric(MethodType targetType, short argumentPosition, short argumentCount, char replaceMode) {
-        if (argumentCount == 0) {
-            if (replaceMode == 'P' || replaceMode == 'A')  replaceMode = 'R';
-            if (replaceMode == 'I')  argumentPosition = 0;
-        }
-        this.targetType = targetType;
-        this.argumentPosition = argumentPosition;
-        this.argumentCount = argumentCount;
-        this.replaceMode = replaceMode;
-        validate(targetType, argumentPosition, argumentCount, replaceMode);
-        Adapter ad = findAdapter(targetType, argumentPosition, argumentCount, replaceMode, filterType());
-        if (ad == null)
-            ad = buildAdapterFromBytecodes(targetType, argumentPosition, argumentCount, replaceMode, filterType());
-        this.adapter = ad;
-        this.entryPoint = ad.prototypeEntryPoint();
+    FilterGeneric(MethodType entryType) {
+        this.entryType = entryType;
+        int tableSize = Kind.LIMIT.invokerIndex(1 + entryType.parameterCount());
+        this.adapters = new Adapter[tableSize];
     }
 
-    Adapter makeInstance(MethodHandle filter, MethodHandle target) {
-        return adapter.makeInstance(entryPoint, filter, target);
+    Adapter getAdapter(Kind kind, int pos) {
+        int index = kind.invokerIndex(pos);
+        Adapter ad = adapters[index];
+        if (ad != null)  return ad;
+        ad = findAdapter(entryType, kind, pos);
+        if (ad == null)
+            ad = buildAdapterFromBytecodes(entryType, kind, pos);
+        adapters[index] = ad;
+        return ad;
+    }
+
+    Adapter makeInstance(Kind kind, int pos, MethodHandle filter, MethodHandle target) {
+        Adapter ad = getAdapter(kind, pos);
+        return ad.makeInstance(ad.prototypeEntryPoint(), filter, target);
+    }
+
+    /** Build an adapter of the given generic type, which invokes filter
+     *  on the selected incoming argument before passing it to the target.
+     * @param pos the argument to filter
+     * @param filter the function to call on the argument
+     * @param target the target to call with the modified argument list
+     * @return an adapter method handle
+     */
+    public static MethodHandle makeArgumentFilter(int pos, MethodHandle filter, MethodHandle target) {
+        return make(Kind.value, pos, filter, target);
     }
 
-    /** Build an adapter of the given generic type, which invokes typedTarget
-     *  on the incoming arguments, after unboxing as necessary.
-     *  The return value is boxed if necessary.
-     * @param genericType  the required type of the result
-     * @param typedTarget the target
+    /** Build an adapter of the given generic type, which invokes a combiner
+     *  on a selected group of leading arguments.
+     *  The result of the combiner is prepended before all those arguments.
+     * @param combiner the function to call on the selected leading arguments
+     * @param target the target to call with the modified argument list
      * @return an adapter method handle
      */
-    public static MethodHandle make(MethodHandle target, int pos, MethodHandle filter) {
-        return FilterGeneric.of(target.type(), (short)pos, (short)1, 'R').makeInstance(filter, target);
+    public static MethodHandle makeArgumentFolder(MethodHandle combiner, MethodHandle target) {
+        int num = combiner.type().parameterCount();
+        return make(Kind.fold, num, combiner, target);
     }
 
-    /** Return the adapter information for this type's erasure. */
-    static FilterGeneric of(MethodType type, short ap, short ac, char mode) {
-        if (type.generic() != type)
-            throw new IllegalArgumentException("must be generic: "+type);
-        validate(type, ap, ac, mode);
-        MethodTypeImpl form = MethodTypeImpl.of(type);
-        FilterGeneric filterGen = form.filterGeneric;
-        if (filterGen == null)
-            form.filterGeneric = filterGen = new FilterGeneric(type, (short)0, (short)1, 'R');
-        return find(filterGen, ap, ac, mode);
+    /** Build an adapter of the given generic type, which invokes a filter
+     *  on the incoming arguments, reified as a group.
+     *  The argument may be modified (by side effects in the filter).
+     *  The arguments, possibly modified, are passed on to the target.
+     * @param filter the function to call on the arguments
+     * @param target the target to call with the possibly-modified argument list
+     * @return an adapter method handle
+     */
+    public static MethodHandle makeFlyby(MethodHandle filter, MethodHandle target) {
+        return make(Kind.flyby, 0, filter, target);
     }
 
-    static FilterGeneric find(FilterGeneric gen, short ap, short ac, char mode) {
-        for (;;) {
-            if (gen.argumentPosition == ap &&
-                gen.argumentCount == ac &&
-                gen.replaceMode == mode) {
-                return gen;
-            }
-            FilterGeneric gen2 = gen.variations;
-            if (gen2 == null)  break;
-            gen = gen2;
-        }
-        FilterGeneric gen2 = new FilterGeneric(gen.targetType, ap, ac, mode);
-        gen.variations = gen2;  // OK if this smashes another cached chain
-        return gen2;
+    /** Build an adapter of the given generic type, which invokes a collector
+     *  on the selected incoming argument and all following arguments.
+     *  The result of the collector replaces all those arguments.
+     * @param collector the function to call on the selected trailing arguments
+     * @param target the target to call with the modified argument list
+     * @return an adapter method handle
+     */
+    public static MethodHandle makeArgumentCollector(MethodHandle collector, MethodHandle target) {
+        int pos = target.type().parameterCount() - 1;
+        return make(Kind.collect, pos, collector, target);
     }
 
-    private static void validate(MethodType type, short ap, short ac, char mode) {
-        int endpos = ap + ac;
-        switch (mode) {
-            case 'P': case 'A': case 'R': case 'D':
-                if (ap >= 0 && ac >= 0 &&
-                        endpos >= 0 && endpos <= type.parameterCount())
-                    return;
-            default:
-                throw new InternalError("configuration "+patternName(ap, ac, mode));
-        }
+    static MethodHandle make(Kind kind, int pos, MethodHandle filter, MethodHandle target) {
+        FilterGeneric fgen = of(kind, pos, filter.type(), target.type());
+        return fgen.makeInstance(kind, pos, filter, target);
+    }
+
+    /** Return the adapter information for this target and filter type. */
+    static FilterGeneric of(Kind kind, int pos, MethodType filterType, MethodType targetType) {
+        MethodType entryType = entryType(kind, pos, filterType, targetType);
+        if (entryType.generic() != entryType)
+            throw newIllegalArgumentException("must be generic: "+entryType);
+        MethodTypeImpl form = MethodTypeImpl.of(entryType);
+        FilterGeneric filterGen = form.filterGeneric;
+        if (filterGen == null)
+            form.filterGeneric = filterGen = new FilterGeneric(entryType);
+        return filterGen;
     }
 
     public String toString() {
-        return "FilterGeneric/"+patternName()+targetType;
-    }
-
-    String patternName() {
-        return patternName(argumentPosition, argumentCount, replaceMode);
-    }
-
-    static String patternName(short ap, short ac, char mode) {
-        return ""+mode+ap+(ac>1?"_"+ac:"");
-    }
-
-    Class<?> filterType() {
-        return Object.class;  // result of filter operation; an uninteresting type
+        return "FilterGeneric/"+entryType;
     }
 
-    static MethodType targetType(MethodType entryType, short ap, short ac, char mode,
-                                 Class<?> arg) {
+    static MethodType targetType(MethodType entryType, Kind kind, int pos, MethodType filterType) {
         MethodType type = entryType;
-        int pos = ap;
-        switch (mode) {
-            case 'A':
-                pos += ac;
-            case 'P':
-                type = type.insertParameterType(pos, arg);
+        switch (kind) {
+            case value:
+            case flyby:
+                break;  // no change
+            case fold:
+                type = type.insertParameterTypes(0, filterType.returnType());
                 break;
-            case 'I':
-                for (int i = 1; i < ac; i++)
-                    type = type.dropParameterType(pos);
-                assert(type.parameterType(pos) == arg);
+            case collect:
+                type = type.dropParameterTypes(pos, type.parameterCount());
+                type = type.insertParameterTypes(pos, filterType.returnType());
                 break;
-            case 'D':
-                break;
+            default:
+                throw new InternalError();
         }
         return type;
     }
 
-    static MethodType entryType(MethodType targetType, short ap, short ac, char mode,
-                                Class<?> arg) {
+    static MethodType entryType(Kind kind, int pos, MethodType filterType, MethodType targetType) {
         MethodType type = targetType;
-        int pos = ap;
-        switch (mode) {
-            case 'A':
-                pos += ac;
-            case 'P':
-                type = type.dropParameterType(pos);
+        switch (kind) {
+            case value:
+            case flyby:
+                break;  // no change
+            case fold:
+                type = type.dropParameterTypes(0, 1);
                 break;
-            case 'I':
-                for (int i = 1; i < ac; i++)
-                    type = type.insertParameterType(pos, arg);
-                assert(type.parameterType(pos) == arg);
+            case collect:
+                type = type.dropParameterTypes(pos, pos+1);
+                type = type.insertParameterTypes(pos, filterType.parameterList());
                 break;
-            case 'D':
-                break;
+            default:
+                throw new InternalError();
         }
         return type;
     }
 
     /* Create an adapter that handles spreading calls for the given type. */
-    static Adapter findAdapter(MethodType targetType, short ap, short ac, char mode, Class<?> arg) {
-        MethodType entryType = entryType(targetType, ap, ac, mode, arg);
-        int argc = targetType.parameterCount();
-        String pname = patternName(ap, ac, mode);
+    static Adapter findAdapter(MethodType entryType, Kind kind, int pos) {
+        int argc = entryType.parameterCount();
         String cname0 = "F"+argc;
-        String cname1 = "F"+argc+mode;
-        String cname2 = "F"+argc+pname;
-        String[] cnames = { cname0, cname1, cname1+"X", cname2 };
-        String iname = "invoke_"+pname;
-        // e.g., F5R; invoke_R3
+        String cname1 = "F"+argc+kind.key;
+        String[] cnames = { cname0, cname1 };
+        String iname = kind.invokerName(pos);
+        // e.g., F5; invoke_C3
         for (String cname : cnames) {
             Class<? extends Adapter> acls = Adapter.findSubClass(cname);
             if (acls == null)  continue;
@@ -220,7 +205,10 @@
                 // Produce an instance configured as a prototype.
                 return ctor.newInstance(entryPoint);
             } catch (IllegalArgumentException ex) {
-            } catch (InvocationTargetException ex) {
+            } catch (InvocationTargetException wex) {
+                Throwable ex = wex.getTargetException();
+                if (ex instanceof Error)  throw (Error)ex;
+                if (ex instanceof RuntimeException)  throw (RuntimeException)ex;
             } catch (InstantiationException ex) {
             } catch (IllegalAccessException ex) {
             }
@@ -228,7 +216,7 @@
         return null;
     }
 
-    static Adapter buildAdapterFromBytecodes(MethodType targetType, short ap, short ac, char mode, Class<?> arg) {
+    static Adapter buildAdapterFromBytecodes(MethodType entryType, Kind kind, int pos) {
         throw new UnsupportedOperationException("NYI");
     }
 
@@ -242,8 +230,13 @@
      * generated once per type erasure family, and reused across adapters.
      */
     static abstract class Adapter extends JavaMethodHandle {
-        protected final MethodHandle filter;
-        protected final MethodHandle target;
+        protected final MethodHandle filter; // transforms one or more arguments
+        protected final MethodHandle target; // ultimate target
+
+        @Override
+        public String toString() {
+            return target.toString();
+        }
 
         protected boolean isPrototype() { return target == null; }
         protected Adapter(MethodHandle entryPoint) {
@@ -287,52 +280,4221 @@
         }
     }
 
-    //* generated classes follow this pattern:
-    static class F1RX extends Adapter {
-        protected F1RX(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
-        protected F1RX(MethodHandle e, MethodHandle f, MethodHandle t)
-                        { super(e, f, t); }
-        protected F1RX makeInstance(MethodHandle e, MethodHandle f, MethodHandle t)
-                        { return new F1RX(e, f, t); }
-        protected Object filter(Object a0) { return filter.<Object>invoke(a0); }
-        protected Object target(Object a0) { return target.<Object>invoke(a0); }
-        protected Object invoke_R0(Object a0) { return target(filter(a0)); }
-    }
-    static class F2RX extends Adapter {
-        protected F2RX(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
-        protected F2RX(MethodHandle e, MethodHandle f, MethodHandle t)
-                        { super(e, f, t); }
-        protected F2RX makeInstance(MethodHandle e, MethodHandle f, MethodHandle t)
-                        { return new F2RX(e, f, t); }
-        protected Object filter(Object a0) { return filter.<Object>invoke(a0); }
-        protected Object target(Object a0, Object a1) { return target.<Object>invoke(a0, a1); }
-        protected Object invoke_R0(Object a0, Object a1) { return target(filter(a0), a1); }
-        protected Object invoke_R1(Object a0, Object a1) { return target(a0, filter(a1)); }
+    static enum Kind {
+        value('V'),      // filter and replace Nth argument value
+        fold('F'),       // fold first N arguments, prepend result
+        collect('C'),    // collect last N arguments, replace with result
+        flyby('Y'),      // reify entire argument list, filter, pass to target
+        LIMIT('?');
+        static final int COUNT = LIMIT.ordinal();
+
+        final char key;
+        Kind(char key) { this.key = key; }
+        String invokerName(int pos) { return "invoke_"+key+""+pos; }
+        int invokerIndex(int pos) { return pos * COUNT + ordinal(); }
     }
-    static class F3RX extends Adapter {
-        protected F3RX(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
-        protected F3RX(MethodHandle e, MethodHandle f, MethodHandle t)
+
+    /* generated classes follow this pattern:
+    static class F1X extends Adapter {
+        protected F1X(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F1X(MethodHandle e, MethodHandle f, MethodHandle t)
                         { super(e, f, t); }
-        protected F3RX makeInstance(MethodHandle e, MethodHandle f, MethodHandle t)
-                        { return new F3RX(e, f, t); }
-        protected Object filter(Object a0) { return filter.<Object>invoke(a0); }
-        protected Object target(Object a0, Object a1, Object a2) { return target.<Object>invoke(a0, a1, a2); }
-        protected Object invoke_R0(Object a0, Object a1, Object a2) { return target(filter(a0), a1, a2); }
-        protected Object invoke_R1(Object a0, Object a1, Object a2) { return target(a0, filter(a1), a2); }
-        protected Object invoke_R2(Object a0, Object a1, Object a2) { return target(a0, a1, filter(a2)); }
+        protected F1X makeInstance(MethodHandle e, MethodHandle f, MethodHandle t)
+                        { return new F1X(e, f, t); }
+        protected Object invoke_V0(Object a0) { return target.invoke(filter.invoke(a0)); }
+        protected Object invoke_F0(Object a0) { return target.invoke(filter.invoke(), a0); }
+        protected Object invoke_F1(Object a0) { return target.invoke(filter.invoke(a0), a0); }
+        protected Object invoke_C0(Object a0) { return target.invoke(filter.invoke(a0)); }
+        protected Object invoke_C1(Object a0) { return target.invoke(a0, filter.invoke()); }
+        protected Object invoke_Y0(Object a0) { Object[] av = { a0 };
+                       filter.<void>invoke(av); return target.invoke(av[0]); }
     }
-    static class F4RX extends Adapter {
-        protected F4RX(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
-        protected F4RX(MethodHandle e, MethodHandle f, MethodHandle t)
+    static class F2X extends Adapter {
+        protected F2X(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F2X(MethodHandle e, MethodHandle f, MethodHandle t)
                         { super(e, f, t); }
-        protected F4RX makeInstance(MethodHandle e, MethodHandle f, MethodHandle t)
-                        { return new F4RX(e, f, t); }
-        protected Object filter(Object a0) { return filter.<Object>invoke(a0); }
-        protected Object target(Object a0, Object a1, Object a2, Object a3) { return target.<Object>invoke(a0, a1, a2, a3); }
-        protected Object invoke_R0(Object a0, Object a1, Object a2, Object a3) { return target(filter(a0), a1, a2, a3); }
-        protected Object invoke_R1(Object a0, Object a1, Object a2, Object a3) { return target(a0, filter(a1), a2, a3); }
-        protected Object invoke_R2(Object a0, Object a1, Object a2, Object a3) { return target(a0, a1, filter(a2), a3); }
-        protected Object invoke_R3(Object a0, Object a1, Object a2, Object a3) { return target(a0, a1, a2, filter(a3)); }
+        protected F2X makeInstance(MethodHandle e, MethodHandle f, MethodHandle t)
+                        { return new F2X(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1) { return target.invoke(filter.invoke(a0), a1); }
+        protected Object invoke_V1(Object a0, Object a1) { return target.invoke(a0, filter.invoke(a1)); }
+        protected Object invoke_F0(Object a0, Object a1) { return target.invoke(filter.invoke(), a0, a1); }
+        protected Object invoke_F1(Object a0, Object a1) { return target.invoke(filter.invoke(a0), a0, a1); }
+        protected Object invoke_F2(Object a0, Object a1) { return target.invoke(filter.invoke(a0, a1), a0, a1); }
+        protected Object invoke_C0(Object a0, Object a1) { return target.invoke(filter.invoke(a0, a1)); }
+        protected Object invoke_C1(Object a0, Object a1) { return target.invoke(a0, filter.invoke(a1)); }
+        protected Object invoke_C2(Object a0, Object a1) { return target.invoke(a0, a1, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1) { Object[] av = { a0, a1 };
+                       filter.<void>invoke(av); return target.invoke(av[0], av[1]); }
     }
     // */
+
+    // This one is written by hand:
+    static class F0 extends Adapter {
+        protected F0(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F0(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F0 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F0(e, f, t); }
+        protected Object invoke_F0() throws Throwable {
+            return target.invoke(filter.invoke()); }
+        protected Object invoke_C0() throws Throwable {
+            return target.invoke(filter.invoke()); }
+        static final Object[] NO_ARGS = { };
+        protected Object invoke_Y0() throws Throwable {
+            filter.<void>invoke(NO_ARGS); // make the flyby
+            return target.invoke(); }
+    }
+
+/*
+  : SHELL; n=FilterGeneric; cp -p $n.java $n.java-; sed < $n.java- > $n.java+ -e '/{{*{{/,/}}*}}/w /tmp/genclasses.java' -e '/}}*}}/q'; (cd /tmp; javac -d . genclasses.java; java -ea -cp . genclasses | sed 's| *[/]/ *$||') >> $n.java+; echo '}' >> $n.java+; mv $n.java+ $n.java; mv $n.java- $n.java~
+//{{{
+import java.util.*;
+class genclasses {
+    static String[][] TEMPLATES = { {
+        "@for@ N=1..20",
+        "    //@each-cat@",
+        "    static class @cat@ extends Adapter {",
+        "        protected @cat@(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype",
+        "        protected @cat@(MethodHandle e, MethodHandle f, MethodHandle t) {",
+        "            super(e, f, t); }",
+        "        protected @cat@ makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {",
+        "            return new @cat@(e, f, t); }",
+        "        //@each-P@",
+        "        protected Object invoke_V@P@(@Tvav@) throws Throwable {",
+        "            return target.invoke(@a0_@@Psp@filter.invoke(a@P@)@_aN@); }",
+        "        //@end-P@",
+        "        //@each-P@",
+        "        protected Object invoke_F@P@(@Tvav@) throws Throwable {",
+        "            return target.invoke(filter.invoke(@a0@),",
+        "                                 @av@); }",
+        "        //@end-P@",
+        "        protected Object invoke_F@N@(@Tvav@) throws Throwable {",
+        "            return target.invoke(filter.invoke(@av@),",
+        "                                 @av@); }",
+        "        //@each-P@",
+        "        protected Object invoke_C@P@(@Tvav@) throws Throwable {",
+        "            return target.invoke(@a0_@filter.invoke(a@P@@_aN@)); }",
+        "        //@end-P@",
+        "        protected Object invoke_C@N@(@Tvav@) throws Throwable {",
+        "            return target.invoke(@av@, filter.invoke()); }",
+        "        protected Object invoke_Y0(@Tvav@) throws Throwable {",
+        "            Object[] av = { @av@ };",
+        "            filter.<void>invoke(av); // make the flyby",
+        "            return target.invoke(@av[i]@); }",
+        "    }",
+    } };
+    static final String NEWLINE_INDENT = " //\n                                 ";
+    enum VAR {
+        cat, N, P, Tvav, av, a0, a0_, _aN, Psp, av_i_;
+        public final String pattern = "@"+toString().replace('_','.')+"@";
+        public String binding = toString();
+        static void makeBindings(boolean topLevel, int inargs, int pos) {
+            assert(-1 <= pos && pos < inargs);
+            VAR.cat.binding = "F"+inargs;
+            VAR.N.binding = String.valueOf(inargs); // incoming arg count
+            VAR.P.binding = String.valueOf(pos);  // selected arg position
+            String[] av = new String[inargs];
+            String[] Tvav = new String[inargs];
+            String[] av_i_ = new String[inargs];
+            for (int i = 0; i < inargs; i++) {
+                av[i] = arg(i);
+                av_i_[i] = "av["+i+"]";
+                String spc = "";
+                if (i > 0 && i % 4 == 0) spc = NEWLINE_INDENT+(pos>9?" ":"")+"  ";
+                Tvav[i] = spc+param("Object", av[i]);
+            }
+            VAR.av.binding = comma(av);
+            VAR.av_i_.binding = comma(av_i_);
+            VAR.Tvav.binding = comma(Tvav);
+            if (pos >= 0) {
+                VAR.Psp.binding = (pos > 0 && pos % 10 == 0) ? NEWLINE_INDENT : "";
+                String[] a0 = new String[pos];
+                String[] aN = new String[inargs - (pos+1)];
+                for (int i = 0; i < pos; i++) {
+                    String spc = "";
+                    if (i > 0 && i % 10 == 0) spc = NEWLINE_INDENT;
+                    a0[i] = spc+av[i];
+                }
+                VAR.a0.binding = comma(a0);
+                VAR.a0_.binding = comma(a0, ", ");
+                for (int i = pos+1; i < inargs; i++) {
+                    String spc = "";
+                    if (i > 0 && i % 10 == 0) spc = NEWLINE_INDENT;
+                    aN[i - (pos+1)] = spc+av[i];
+                }
+                VAR._aN.binding = comma(", ", aN);
+            }
+        }
+        static String arg(int i) { return "a"+i; }
+        static String param(String t, String a) { return t+" "+a; }
+        static String comma(String[] v) { return comma(v, ""); }
+        static String comma(String[] v, String sep) { return comma("", v, sep); }
+        static String comma(String sep, String[] v) { return comma(sep, v, ""); }
+        static String comma(String sep1, String[] v, String sep2) {
+            if (v.length == 0)  return "";
+            String res = v[0];
+            for (int i = 1; i < v.length; i++)  res += ", "+v[i];
+            return sep1 + res + sep2;
+        }
+        static String transform(String string) {
+            for (VAR var : values())
+                string = string.replaceAll(var.pattern, var.binding);
+            return string;
+        }
+    }
+    static String[] stringsIn(String[] strings, int beg, int end) {
+        return Arrays.copyOfRange(strings, beg, Math.min(end, strings.length));
+    }
+    static String[] stringsBefore(String[] strings, int pos) {
+        return stringsIn(strings, 0, pos);
+    }
+    static String[] stringsAfter(String[] strings, int pos) {
+        return stringsIn(strings, pos, strings.length);
+    }
+    static int indexAfter(String[] strings, int pos, String tag) {
+        return Math.min(indexBefore(strings, pos, tag) + 1, strings.length);
+    }
+    static int indexBefore(String[] strings, int pos, String tag) {
+        for (int i = pos, end = strings.length; ; i++) {
+            if (i == end || strings[i].endsWith(tag))  return i;
+        }
+    }
+    static int MIN_ARITY, MAX_ARITY;
+    public static void main(String... av) {
+        for (String[] template : TEMPLATES) {
+            int forLinesLimit = indexBefore(template, 0, "@each-cat@");
+            String[] forLines = stringsBefore(template, forLinesLimit);
+            template = stringsAfter(template, forLinesLimit);
+            for (String forLine : forLines)
+                expandTemplate(forLine, template);
+        }
+    }
+    static void expandTemplate(String forLine, String[] template) {
+        String[] params = forLine.split("[^0-9]+");
+        if (params[0].length() == 0)  params = stringsAfter(params, 1);
+        System.out.println("//params="+Arrays.asList(params));
+        int pcur = 0;
+        MIN_ARITY = Integer.valueOf(params[pcur++]);
+        MAX_ARITY = Integer.valueOf(params[pcur++]);
+        if (pcur != params.length)  throw new RuntimeException("bad extra param: "+forLine);
+        for (int inargs = MIN_ARITY; inargs <= MAX_ARITY; inargs++) {
+            expandTemplate(template, true, inargs, -1);
+        }
+    }
+    static void expandTemplate(String[] template, boolean topLevel, int inargs, int pos) {
+        VAR.makeBindings(topLevel, inargs, pos);
+        for (int i = 0; i < template.length; i++) {
+            String line = template[i];
+            if (line.endsWith("@each-cat@")) {
+                // ignore
+            } else if (line.endsWith("@each-P@")) {
+                int blockEnd = indexAfter(template, i, "@end-P@");
+                String[] block = stringsIn(template, i+1, blockEnd-1);
+                for (int pos1 = Math.max(0,pos); pos1 < inargs; pos1++)
+                    expandTemplate(block, false, inargs, pos1);
+                VAR.makeBindings(topLevel, inargs, pos);
+                i = blockEnd-1; continue;
+            } else {
+                System.out.println(VAR.transform(line));
+            }
+        }
+    }
 }
+//}}} */
+//params=[1, 20]
+    static class F1 extends Adapter {
+        protected F1(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F1(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F1 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F1(e, f, t); }
+        protected Object invoke_V0(Object a0) throws Throwable {
+            return target.invoke(filter.invoke(a0)); }
+        protected Object invoke_F0(Object a0) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0); }
+        protected Object invoke_F1(Object a0) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0); }
+        protected Object invoke_C0(Object a0) throws Throwable {
+            return target.invoke(filter.invoke(a0)); }
+        protected Object invoke_C1(Object a0) throws Throwable {
+            return target.invoke(a0, filter.invoke()); }
+        protected Object invoke_Y0(Object a0) throws Throwable {
+            Object[] av = { a0 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0]); }
+    }
+    static class F2 extends Adapter {
+        protected F2(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F2(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F2 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F2(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1); }
+        protected Object invoke_V1(Object a0, Object a1) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1)); }
+        protected Object invoke_F0(Object a0, Object a1) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1); }
+        protected Object invoke_F1(Object a0, Object a1) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1); }
+        protected Object invoke_F2(Object a0, Object a1) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1); }
+        protected Object invoke_C0(Object a0, Object a1) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1)); }
+        protected Object invoke_C1(Object a0, Object a1) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1)); }
+        protected Object invoke_C2(Object a0, Object a1) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1) throws Throwable {
+            Object[] av = { a0, a1 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1]); }
+    }
+    static class F3 extends Adapter {
+        protected F3(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F3(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F3 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F3(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2) throws Throwable {
+            Object[] av = { a0, a1, a2 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2]); }
+    }
+    static class F4 extends Adapter {
+        protected F4(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F4(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F4 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F4(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3) throws Throwable {
+            Object[] av = { a0, a1, a2, a3 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3]); }
+    }
+    static class F5 extends Adapter {
+        protected F5(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F5(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F5 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F5(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4]); }
+    }
+    static class F6 extends Adapter {
+        protected F6(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F6(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F6 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F6(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5]); }
+    }
+    static class F7 extends Adapter {
+        protected F7(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F7(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F7 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F7(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6]); }
+    }
+    static class F8 extends Adapter {
+        protected F8(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F8(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F8 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F8(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6, a7); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6, a7); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6, a7); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6, a7); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6, a7); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6, a7); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6), a7); }
+        protected Object invoke_V7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6, a7); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6, a7); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6, a7); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6, a7); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6, a7); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6, a7); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6, a7); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6, a7); }
+        protected Object invoke_F8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7),
+                                 a0, a1, a2, a3, a4, a5, a6, a7); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6, a7)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6, a7)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6, a7)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6, a7)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6, a7)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6, a7)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7)); }
+        protected Object invoke_C8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6, a7 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6], av[7]); }
+    }
+    static class F9 extends Adapter {
+        protected F9(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F9(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F9 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F9(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6, a7, a8); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6, a7, a8); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6, a7, a8); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6, a7, a8); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6, a7, a8); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6, a7, a8); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6), a7, a8); }
+        protected Object invoke_V7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7), a8); }
+        protected Object invoke_V8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8); }
+        protected Object invoke_F8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8); }
+        protected Object invoke_F9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6, a7, a8)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6, a7, a8)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6, a7, a8)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6, a7, a8)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6, a7, a8)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6, a7, a8)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7, a8)); }
+        protected Object invoke_C8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8)); }
+        protected Object invoke_C9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6, a7, a8 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6], av[7], av[8]); }
+    }
+    static class F10 extends Adapter {
+        protected F10(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F10(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F10 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F10(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6, a7, a8, a9); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6, a7, a8, a9); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6), a7, a8, a9); }
+        protected Object invoke_V7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7), a8, a9); }
+        protected Object invoke_V8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8), a9); }
+        protected Object invoke_V9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_F8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_F9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_F10(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6, a7, a8, a9)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6, a7, a8, a9)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6, a7, a8, a9)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6, a7, a8, a9)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6, a7, a8, a9)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6, a7, a8, a9)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7, a8, a9)); }
+        protected Object invoke_C8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8, a9)); }
+        protected Object invoke_C9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9)); }
+        protected Object invoke_C10(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6, a7, a8, a9 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6], av[7], av[8], av[9]); }
+    }
+    static class F11 extends Adapter {
+        protected F11(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F11(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F11 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F11(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6, a7, a8, a9,
+                                 a10); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6, a7, a8, a9,
+                                 a10); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6, a7, a8, a9,
+                                 a10); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6, a7, a8, a9,
+                                 a10); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6), a7, a8, a9,
+                                 a10); }
+        protected Object invoke_V7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7), a8, a9,
+                                 a10); }
+        protected Object invoke_V8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8), a9,
+                                 a10); }
+        protected Object invoke_V9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9),
+                                 a10); }
+        protected Object invoke_V10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 filter.invoke(a10)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); }
+        protected Object invoke_F8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); }
+        protected Object invoke_F9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); }
+        protected Object invoke_F10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); }
+        protected Object invoke_F11(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6, a7, a8, a9,
+                                 a10)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6, a7, a8, a9,
+                                 a10)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6, a7, a8, a9,
+                                 a10)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6, a7, a8, a9,
+                                 a10)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7, a8, a9,
+                                 a10)); }
+        protected Object invoke_C8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8, a9,
+                                 a10)); }
+        protected Object invoke_C9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9,
+                                 a10)); }
+        protected Object invoke_C10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, filter.invoke(a10)); }
+        protected Object invoke_C11(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6], av[7], av[8], av[9], av[10]); }
+    }
+    static class F12 extends Adapter {
+        protected F12(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F12(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F12 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F12(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6, a7, a8, a9,
+                                 a10, a11); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6, a7, a8, a9,
+                                 a10, a11); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6, a7, a8, a9,
+                                 a10, a11); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6), a7, a8, a9,
+                                 a10, a11); }
+        protected Object invoke_V7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7), a8, a9,
+                                 a10, a11); }
+        protected Object invoke_V8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8), a9,
+                                 a10, a11); }
+        protected Object invoke_V9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9),
+                                 a10, a11); }
+        protected Object invoke_V10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 filter.invoke(a10), a11); }
+        protected Object invoke_V11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11); }
+        protected Object invoke_F8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11); }
+        protected Object invoke_F9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11); }
+        protected Object invoke_F10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11); }
+        protected Object invoke_F11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11); }
+        protected Object invoke_F12(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6, a7, a8, a9,
+                                 a10, a11)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6, a7, a8, a9,
+                                 a10, a11)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6, a7, a8, a9,
+                                 a10, a11)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7, a8, a9,
+                                 a10, a11)); }
+        protected Object invoke_C8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8, a9,
+                                 a10, a11)); }
+        protected Object invoke_C9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9,
+                                 a10, a11)); }
+        protected Object invoke_C10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, filter.invoke(a10, a11)); }
+        protected Object invoke_C11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11)); }
+        protected Object invoke_C12(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6], av[7], av[8], av[9], av[10], av[11]); }
+    }
+    static class F13 extends Adapter {
+        protected F13(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F13(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F13 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F13(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6, a7, a8, a9,
+                                 a10, a11, a12); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6, a7, a8, a9,
+                                 a10, a11, a12); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6), a7, a8, a9,
+                                 a10, a11, a12); }
+        protected Object invoke_V7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7), a8, a9,
+                                 a10, a11, a12); }
+        protected Object invoke_V8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8), a9,
+                                 a10, a11, a12); }
+        protected Object invoke_V9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9),
+                                 a10, a11, a12); }
+        protected Object invoke_V10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 filter.invoke(a10), a11, a12); }
+        protected Object invoke_V11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11), a12); }
+        protected Object invoke_V12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_F8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_F9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_F10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_F11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_F12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_F13(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6, a7, a8, a9,
+                                 a10, a11, a12)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6, a7, a8, a9,
+                                 a10, a11, a12)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7, a8, a9,
+                                 a10, a11, a12)); }
+        protected Object invoke_C8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8, a9,
+                                 a10, a11, a12)); }
+        protected Object invoke_C9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9,
+                                 a10, a11, a12)); }
+        protected Object invoke_C10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, filter.invoke(a10, a11, a12)); }
+        protected Object invoke_C11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11, a12)); }
+        protected Object invoke_C12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12)); }
+        protected Object invoke_C13(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6], av[7], av[8], av[9], av[10], av[11], av[12]); }
+    }
+    static class F14 extends Adapter {
+        protected F14(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F14(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F14 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F14(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6, a7, a8, a9,
+                                 a10, a11, a12, a13); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6), a7, a8, a9,
+                                 a10, a11, a12, a13); }
+        protected Object invoke_V7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7), a8, a9,
+                                 a10, a11, a12, a13); }
+        protected Object invoke_V8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8), a9,
+                                 a10, a11, a12, a13); }
+        protected Object invoke_V9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9),
+                                 a10, a11, a12, a13); }
+        protected Object invoke_V10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 filter.invoke(a10), a11, a12, a13); }
+        protected Object invoke_V11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11), a12, a13); }
+        protected Object invoke_V12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12), a13); }
+        protected Object invoke_V13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_F14(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6, a7, a8, a9,
+                                 a10, a11, a12, a13)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7, a8, a9,
+                                 a10, a11, a12, a13)); }
+        protected Object invoke_C8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8, a9,
+                                 a10, a11, a12, a13)); }
+        protected Object invoke_C9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9,
+                                 a10, a11, a12, a13)); }
+        protected Object invoke_C10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, filter.invoke(a10, a11, a12, a13)); }
+        protected Object invoke_C11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11, a12, a13)); }
+        protected Object invoke_C12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12, a13)); }
+        protected Object invoke_C13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13)); }
+        protected Object invoke_C14(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6], av[7], av[8], av[9], av[10], av[11], av[12], av[13]); }
+    }
+    static class F15 extends Adapter {
+        protected F15(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F15(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F15 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F15(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6), a7, a8, a9,
+                                 a10, a11, a12, a13, a14); }
+        protected Object invoke_V7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7), a8, a9,
+                                 a10, a11, a12, a13, a14); }
+        protected Object invoke_V8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8), a9,
+                                 a10, a11, a12, a13, a14); }
+        protected Object invoke_V9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9),
+                                 a10, a11, a12, a13, a14); }
+        protected Object invoke_V10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 filter.invoke(a10), a11, a12, a13, a14); }
+        protected Object invoke_V11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11), a12, a13, a14); }
+        protected Object invoke_V12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12), a13, a14); }
+        protected Object invoke_V13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13), a14); }
+        protected Object invoke_V14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, filter.invoke(a14)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_F15(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7, a8, a9,
+                                 a10, a11, a12, a13, a14)); }
+        protected Object invoke_C8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8, a9,
+                                 a10, a11, a12, a13, a14)); }
+        protected Object invoke_C9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9,
+                                 a10, a11, a12, a13, a14)); }
+        protected Object invoke_C10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, filter.invoke(a10, a11, a12, a13, a14)); }
+        protected Object invoke_C11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11, a12, a13, a14)); }
+        protected Object invoke_C12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12, a13, a14)); }
+        protected Object invoke_C13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13, a14)); }
+        protected Object invoke_C14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, filter.invoke(a14)); }
+        protected Object invoke_C15(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6], av[7], av[8], av[9], av[10], av[11], av[12], av[13], av[14]); }
+    }
+    static class F16 extends Adapter {
+        protected F16(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F16(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F16 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F16(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6), a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_V7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7), a8, a9,
+                                 a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_V8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8), a9,
+                                 a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_V9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9),
+                                 a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_V10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 filter.invoke(a10), a11, a12, a13, a14, a15); }
+        protected Object invoke_V11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11), a12, a13, a14, a15); }
+        protected Object invoke_V12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12), a13, a14, a15); }
+        protected Object invoke_V13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13), a14, a15); }
+        protected Object invoke_V14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, filter.invoke(a14), a15); }
+        protected Object invoke_V15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, filter.invoke(a15)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_F16(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15)); }
+        protected Object invoke_C8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8, a9,
+                                 a10, a11, a12, a13, a14, a15)); }
+        protected Object invoke_C9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9,
+                                 a10, a11, a12, a13, a14, a15)); }
+        protected Object invoke_C10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, filter.invoke(a10, a11, a12, a13, a14, a15)); }
+        protected Object invoke_C11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11, a12, a13, a14, a15)); }
+        protected Object invoke_C12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12, a13, a14, a15)); }
+        protected Object invoke_C13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13, a14, a15)); }
+        protected Object invoke_C14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, filter.invoke(a14, a15)); }
+        protected Object invoke_C15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, filter.invoke(a15)); }
+        protected Object invoke_C16(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6], av[7], av[8], av[9], av[10], av[11], av[12], av[13], av[14], av[15]); }
+    }
+    static class F17 extends Adapter {
+        protected F17(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F17(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F17 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F17(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6), a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_V7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7), a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_V8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8), a9,
+                                 a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_V9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9),
+                                 a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_V10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 filter.invoke(a10), a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_V11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11), a12, a13, a14, a15, a16); }
+        protected Object invoke_V12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12), a13, a14, a15, a16); }
+        protected Object invoke_V13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13), a14, a15, a16); }
+        protected Object invoke_V14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, filter.invoke(a14), a15, a16); }
+        protected Object invoke_V15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, filter.invoke(a15), a16); }
+        protected Object invoke_V16(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, filter.invoke(a16)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F16(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_F17(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16)); }
+        protected Object invoke_C8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16)); }
+        protected Object invoke_C9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9,
+                                 a10, a11, a12, a13, a14, a15, a16)); }
+        protected Object invoke_C10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, filter.invoke(a10, a11, a12, a13, a14, a15, a16)); }
+        protected Object invoke_C11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11, a12, a13, a14, a15, a16)); }
+        protected Object invoke_C12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12, a13, a14, a15, a16)); }
+        protected Object invoke_C13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13, a14, a15, a16)); }
+        protected Object invoke_C14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, filter.invoke(a14, a15, a16)); }
+        protected Object invoke_C15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, filter.invoke(a15, a16)); }
+        protected Object invoke_C16(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, filter.invoke(a16)); }
+        protected Object invoke_C17(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6], av[7], av[8], av[9], av[10], av[11], av[12], av[13], av[14], av[15], av[16]); }
+    }
+    static class F18 extends Adapter {
+        protected F18(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F18(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F18 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F18(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6), a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_V7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7), a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_V8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8), a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_V9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9),
+                                 a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_V10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 filter.invoke(a10), a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_V11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11), a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_V12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12), a13, a14, a15, a16, a17); }
+        protected Object invoke_V13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13), a14, a15, a16, a17); }
+        protected Object invoke_V14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, filter.invoke(a14), a15, a16, a17); }
+        protected Object invoke_V15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, filter.invoke(a15), a16, a17); }
+        protected Object invoke_V16(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, filter.invoke(a16), a17); }
+        protected Object invoke_V17(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, filter.invoke(a17)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F16(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F17(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_F18(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17)); }
+        protected Object invoke_C8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17)); }
+        protected Object invoke_C9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17)); }
+        protected Object invoke_C10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, filter.invoke(a10, a11, a12, a13, a14, a15, a16, a17)); }
+        protected Object invoke_C11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11, a12, a13, a14, a15, a16, a17)); }
+        protected Object invoke_C12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12, a13, a14, a15, a16, a17)); }
+        protected Object invoke_C13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13, a14, a15, a16, a17)); }
+        protected Object invoke_C14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, filter.invoke(a14, a15, a16, a17)); }
+        protected Object invoke_C15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, filter.invoke(a15, a16, a17)); }
+        protected Object invoke_C16(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, filter.invoke(a16, a17)); }
+        protected Object invoke_C17(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, filter.invoke(a17)); }
+        protected Object invoke_C18(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6], av[7], av[8], av[9], av[10], av[11], av[12], av[13], av[14], av[15], av[16], av[17]); }
+    }
+    static class F19 extends Adapter {
+        protected F19(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F19(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F19 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F19(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6), a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_V7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7), a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_V8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8), a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_V9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9),
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_V10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 filter.invoke(a10), a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_V11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11), a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_V12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12), a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_V13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13), a14, a15, a16, a17, a18); }
+        protected Object invoke_V14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, filter.invoke(a14), a15, a16, a17, a18); }
+        protected Object invoke_V15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, filter.invoke(a15), a16, a17, a18); }
+        protected Object invoke_V16(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, filter.invoke(a16), a17, a18); }
+        protected Object invoke_V17(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, filter.invoke(a17), a18); }
+        protected Object invoke_V18(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, filter.invoke(a18)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F16(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F17(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F18(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_F19(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, filter.invoke(a10, a11, a12, a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11, a12, a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12, a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13, a14, a15, a16, a17, a18)); }
+        protected Object invoke_C14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, filter.invoke(a14, a15, a16, a17, a18)); }
+        protected Object invoke_C15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, filter.invoke(a15, a16, a17, a18)); }
+        protected Object invoke_C16(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, filter.invoke(a16, a17, a18)); }
+        protected Object invoke_C17(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, filter.invoke(a17, a18)); }
+        protected Object invoke_C18(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, filter.invoke(a18)); }
+        protected Object invoke_C19(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6], av[7], av[8], av[9], av[10], av[11], av[12], av[13], av[14], av[15], av[16], av[17], av[18]); }
+    }
+    static class F20 extends Adapter {
+        protected F20(MethodHandle entryPoint) { super(entryPoint); }  // to build prototype
+        protected F20(MethodHandle e, MethodHandle f, MethodHandle t) {
+            super(e, f, t); }
+        protected F20 makeInstance(MethodHandle e, MethodHandle f, MethodHandle t) {
+            return new F20(e, f, t); }
+        protected Object invoke_V0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0), a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1), a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2), a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3), a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4), a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5), a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6), a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7), a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8), a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9),
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 filter.invoke(a10), a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11), a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12), a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13), a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_V14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, filter.invoke(a14), a15, a16, a17, a18, a19); }
+        protected Object invoke_V15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, filter.invoke(a15), a16, a17, a18, a19); }
+        protected Object invoke_V16(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, filter.invoke(a16), a17, a18, a19); }
+        protected Object invoke_V17(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, filter.invoke(a17), a18, a19); }
+        protected Object invoke_V18(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, filter.invoke(a18), a19); }
+        protected Object invoke_V19(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, filter.invoke(a19)); }
+        protected Object invoke_F0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F16(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F17(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F18(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F19(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_F20(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19),
+                                 a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19); }
+        protected Object invoke_C0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(filter.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C1(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, filter.invoke(a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C2(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, filter.invoke(a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C3(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, filter.invoke(a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C4(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, filter.invoke(a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C5(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, filter.invoke(a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C6(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, filter.invoke(a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C7(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, filter.invoke(a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C8(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, filter.invoke(a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C9(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, filter.invoke(a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C10(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, filter.invoke(a10, a11, a12, a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C11(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, filter.invoke(a11, a12, a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C12(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, filter.invoke(a12, a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C13(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, filter.invoke(a13, a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C14(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, filter.invoke(a14, a15, a16, a17, a18, a19)); }
+        protected Object invoke_C15(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, filter.invoke(a15, a16, a17, a18, a19)); }
+        protected Object invoke_C16(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, filter.invoke(a16, a17, a18, a19)); }
+        protected Object invoke_C17(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, filter.invoke(a17, a18, a19)); }
+        protected Object invoke_C18(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, filter.invoke(a18, a19)); }
+        protected Object invoke_C19(Object a0, Object a1, Object a2, Object a3,
+                                    Object a4, Object a5, Object a6, Object a7,
+                                    Object a8, Object a9, Object a10, Object a11,
+                                    Object a12, Object a13, Object a14, Object a15,
+                                    Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9,
+                                 a10, a11, a12, a13, a14, a15, a16, a17, a18, filter.invoke(a19)); }
+        protected Object invoke_C20(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            return target.invoke(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, filter.invoke()); }
+        protected Object invoke_Y0(Object a0, Object a1, Object a2, Object a3,
+                                   Object a4, Object a5, Object a6, Object a7,
+                                   Object a8, Object a9, Object a10, Object a11,
+                                   Object a12, Object a13, Object a14, Object a15,
+                                   Object a16, Object a17, Object a18, Object a19) throws Throwable {
+            Object[] av = { a0, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19 };
+            filter.<void>invoke(av); // make the flyby
+            return target.invoke(av[0], av[1], av[2], av[3], av[4], av[5], av[6], av[7], av[8], av[9], av[10], av[11], av[12], av[13], av[14], av[15], av[16], av[17], av[18], av[19]); }
+    }
+}