--- a/hotspot/src/share/vm/utilities/accessFlags.hpp	Wed Apr 08 00:12:59 2009 -0700
+++ b/hotspot/src/share/vm/utilities/accessFlags.hpp	Wed Apr 08 10:56:49 2009 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright 1997-2007 Sun Microsystems, Inc.  All Rights Reserved.
+ * Copyright 1997-2009 Sun Microsystems, Inc.  All Rights Reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -47,6 +47,8 @@
   JVM_ACC_IS_OLD                  = 0x00010000,     // RedefineClasses() has replaced this method
   JVM_ACC_IS_OBSOLETE             = 0x00020000,     // RedefineClasses() has made method obsolete
   JVM_ACC_IS_PREFIXED_NATIVE      = 0x00040000,     // JVMTI has prefixed this native method
+  JVM_MH_INVOKE_BITS           // = 0x10001100      // MethodHandle.invoke quasi-native
+                                  = (JVM_ACC_NATIVE | JVM_ACC_SYNTHETIC | JVM_ACC_MONITOR_MATCH),
 
   // klassOop flags
   JVM_ACC_HAS_MIRANDA_METHODS     = 0x10000000,     // True if this class has miranda methods in it's vtable
@@ -72,6 +74,7 @@
 
                                                     // flags accepted by set_field_flags()
   JVM_ACC_FIELD_FLAGS                = 0x00008000 | JVM_ACC_WRITTEN_FLAGS
+
 };
 
 
@@ -114,6 +117,15 @@
   bool is_obsolete             () const { return (_flags & JVM_ACC_IS_OBSOLETE            ) != 0; }
   bool is_prefixed_native      () const { return (_flags & JVM_ACC_IS_PREFIXED_NATIVE     ) != 0; }
 
+  // JSR 292:  A method of the form MethodHandle.invoke(A...)R method is
+  // neither bytecoded nor a JNI native, but rather a fast call through
+  // a lightweight method handle object.  Because it is not bytecoded,
+  // it has the native bit set, but the monitor-match bit is also set
+  // to distinguish it from a JNI native (which never has the match bit set).
+  // The synthetic bit is also present, because such a method is never
+  // explicitly defined in Java code.
+  bool is_method_handle_invoke () const { return (_flags & JVM_MH_INVOKE_BITS) == JVM_MH_INVOKE_BITS; }
+
   // klassOop flags
   bool has_miranda_methods     () const { return (_flags & JVM_ACC_HAS_MIRANDA_METHODS    ) != 0; }
   bool has_vanilla_constructor () const { return (_flags & JVM_ACC_HAS_VANILLA_CONSTRUCTOR) != 0; }
@@ -199,6 +211,14 @@
   jshort as_short()                    { return (jshort)_flags; }
   jint   as_int()                      { return _flags; }
 
+  inline friend AccessFlags accessFlags_from(jint flags);
+
   // Printing/debugging
   void print_on(outputStream* st) const PRODUCT_RETURN;
 };
+
+inline AccessFlags accessFlags_from(jint flags) {
+  AccessFlags af;
+  af._flags = flags;
+  return af;
+}