jdk-sandbox: comparison src/java.base/share/classes/java/lang/Class.java

equal deleted inserted replaced

-:4ebc2e2fb97c
+:71c04702a3d5
+/*
+* Copyright (c) 1994, 2017, Oracle and/or its affiliates. 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
+* under the terms of the GNU General Public License version 2 only, as
+* published by the Free Software Foundation.  Oracle designates this
+* particular file as subject to the "Classpath" exception as provided
+* by Oracle in the LICENSE file that accompanied this code.
+*
+* This code is distributed in the hope that it will be useful, but WITHOUT
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+* version 2 for more details (a copy is included in the LICENSE file that
+* accompanied this code).
+*
+* You should have received a copy of the GNU General Public License version
+* 2 along with this work; if not, write to the Free Software Foundation,
+* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+*
+* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+* or visit www.oracle.com if you need additional information or have any
+* questions.
+*/
+package java.lang;
+import java.lang.annotation.Annotation;
+import java.lang.module.ModuleReader;
+import java.lang.ref.SoftReference;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.ObjectStreamField;
+import java.lang.reflect.AnnotatedElement;
+import java.lang.reflect.AnnotatedType;
+import java.lang.reflect.Array;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Executable;
+import java.lang.reflect.Field;
+import java.lang.reflect.GenericArrayType;
+import java.lang.reflect.GenericDeclaration;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Member;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.lang.reflect.Proxy;
+import java.lang.reflect.Type;
+import java.lang.reflect.TypeVariable;
+import java.net.URL;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.StringJoiner;
+import jdk.internal.HotSpotIntrinsicCandidate;
+import jdk.internal.loader.BootLoader;
+import jdk.internal.loader.BuiltinClassLoader;
+import jdk.internal.misc.Unsafe;
+import jdk.internal.misc.VM;
+import jdk.internal.module.Resources;
+import jdk.internal.reflect.CallerSensitive;
+import jdk.internal.reflect.ConstantPool;
+import jdk.internal.reflect.Reflection;
+import jdk.internal.reflect.ReflectionFactory;
+import jdk.internal.vm.annotation.ForceInline;
+import sun.reflect.generics.factory.CoreReflectionFactory;
+import sun.reflect.generics.factory.GenericsFactory;
+import sun.reflect.generics.repository.ClassRepository;
+import sun.reflect.generics.repository.MethodRepository;
+import sun.reflect.generics.repository.ConstructorRepository;
+import sun.reflect.generics.scope.ClassScope;
+import sun.security.util.SecurityConstants;
+import sun.reflect.annotation.*;
+import sun.reflect.misc.ReflectUtil;
+/**
+* Instances of the class {@code Class} represent classes and
+* interfaces in a running Java application.  An enum is a kind of
+* class and an annotation is a kind of interface.  Every array also
+* belongs to a class that is reflected as a {@code Class} object
+* that is shared by all arrays with the same element type and number
+* of dimensions.  The primitive Java types ({@code boolean},
+* {@code byte}, {@code char}, {@code short},
+* {@code int}, {@code long}, {@code float}, and
+* {@code double}), and the keyword {@code void} are also
+* represented as {@code Class} objects.
+*
+* <p> {@code Class} has no public constructor. Instead {@code Class}
+* objects are constructed automatically by the Java Virtual Machine as classes
+* are loaded and by calls to the {@code defineClass} method in the class
+* loader.
+*
+* <p> The following example uses a {@code Class} object to print the
+* class name of an object:
+*
+* <blockquote><pre>
+*     void printClassName(Object obj) {
+*         System.out.println("The class of " + obj +
+*                            " is " + obj.getClass().getName());
+*     }
+* </pre></blockquote>
+*
+* <p> It is also possible to get the {@code Class} object for a named
+* type (or for void) using a class literal.  See Section 15.8.2 of
+* <cite>The Java&trade; Language Specification</cite>.
+* For example:
+*
+* <blockquote>
+*     {@code System.out.println("The name of class Foo is: "+Foo.class.getName());}
+* </blockquote>
+*
+* @param <T> the type of the class modeled by this {@code Class}
+* object.  For example, the type of {@code String.class} is {@code
+* Class<String>}.  Use {@code Class<?>} if the class being modeled is
+* unknown.
+*
+* @author  unascribed
+* @see     java.lang.ClassLoader#defineClass(byte[], int, int)
+* @since   1.0
+*/
+public final class Class<T> implements java.io.Serializable,
+GenericDeclaration,
+Type,
+AnnotatedElement {
+private static final int ANNOTATION= 0x00002000;
+private static final int ENUM      = 0x00004000;
+private static final int SYNTHETIC = 0x00001000;
+private static native void registerNatives();
+static {
+registerNatives();
+}
+/*
+* Private constructor. Only the Java Virtual Machine creates Class objects.
+* This constructor is not used and prevents the default constructor being
+* generated.
+*/
+private Class(ClassLoader loader, Class<?> arrayComponentType) {
+// Initialize final field for classLoader.  The initialization value of non-null
+// prevents future JIT optimizations from assuming this final field is null.
+classLoader = loader;
+componentType = arrayComponentType;
+}
+/**
+* Converts the object to a string. The string representation is the
+* string "class" or "interface", followed by a space, and then by the
+* fully qualified name of the class in the format returned by
+* {@code getName}.  If this {@code Class} object represents a
+* primitive type, this method returns the name of the primitive type.  If
+* this {@code Class} object represents void this method returns
+* "void". If this {@code Class} object represents an array type,
+* this method returns "class " followed by {@code getName}.
+*
+* @return a string representation of this class object.
+*/
+public String toString() {
+return (isInterface() ? "interface " : (isPrimitive() ? "" : "class "))
++ getName();
+}
+/**
+* Returns a string describing this {@code Class}, including
+* information about modifiers and type parameters.
+*
+* The string is formatted as a list of type modifiers, if any,
+* followed by the kind of type (empty string for primitive types
+* and {@code class}, {@code enum}, {@code interface}, or
+* <code>&#64;</code>{@code interface}, as appropriate), followed
+* by the type's name, followed by an angle-bracketed
+* comma-separated list of the type's type parameters, if any.
+*
+* A space is used to separate modifiers from one another and to
+* separate any modifiers from the kind of type. The modifiers
+* occur in canonical order. If there are no type parameters, the
+* type parameter list is elided.
+*
+* For an array type, the string starts with the type name,
+* followed by an angle-bracketed comma-separated list of the
+* type's type parameters, if any, followed by a sequence of
+* {@code []} characters, one set of brackets per dimension of
+* the array.
+*
+* <p>Note that since information about the runtime representation
+* of a type is being generated, modifiers not present on the
+* originating source code or illegal on the originating source
+* code may be present.
+*
+* @return a string describing this {@code Class}, including
+* information about modifiers and type parameters
+*
+* @since 1.8
+*/
+public String toGenericString() {
+if (isPrimitive()) {
+return toString();
+} else {
+StringBuilder sb = new StringBuilder();
+Class<?> component = this;
+int arrayDepth = 0;
+if (isArray()) {
+do {
+arrayDepth++;
+component = component.getComponentType();
+} while (component.isArray());
+sb.append(component.getName());
+} else {
+// Class modifiers are a superset of interface modifiers
+int modifiers = getModifiers() & Modifier.classModifiers();
+if (modifiers != 0) {
+sb.append(Modifier.toString(modifiers));
+sb.append(' ');
+}
+if (isAnnotation()) {
+sb.append('@');
+}
+if (isInterface()) { // Note: all annotation types are interfaces
+sb.append("interface");
+} else {
+if (isEnum())
+sb.append("enum");
+else
+sb.append("class");
+}
+sb.append(' ');
+sb.append(getName());
+}
+TypeVariable<?>[] typeparms = component.getTypeParameters();
+if (typeparms.length > 0) {
+StringJoiner sj = new StringJoiner(",", "<", ">");
+for(TypeVariable<?> typeparm: typeparms) {
+sj.add(typeparm.getTypeName());
+}
+sb.append(sj.toString());
+}
+for (int i = 0; i < arrayDepth; i++)
+sb.append("[]");
+return sb.toString();
+}
+}
+/**
+* Returns the {@code Class} object associated with the class or
+* interface with the given string name.  Invoking this method is
+* equivalent to:
+*
+* <blockquote>
+*  {@code Class.forName(className, true, currentLoader)}
+* </blockquote>
+*
+* where {@code currentLoader} denotes the defining class loader of
+* the current class.
+*
+* <p> For example, the following code fragment returns the
+* runtime {@code Class} descriptor for the class named
+* {@code java.lang.Thread}:
+*
+* <blockquote>
+*   {@code Class t = Class.forName("java.lang.Thread")}
+* </blockquote>
+* <p>
+* A call to {@code forName("X")} causes the class named
+* {@code X} to be initialized.
+*
+* @param      className   the fully qualified name of the desired class.
+* @return     the {@code Class} object for the class with the
+*             specified name.
+* @exception LinkageError if the linkage fails
+* @exception ExceptionInInitializerError if the initialization provoked
+*            by this method fails
+* @exception ClassNotFoundException if the class cannot be located
+*/
+@CallerSensitive
+public static Class<?> forName(String className)
+throws ClassNotFoundException {
+Class<?> caller = Reflection.getCallerClass();
+return forName0(className, true, ClassLoader.getClassLoader(caller), caller);
+}
+/**
+* Returns the {@code Class} object associated with the class or
+* interface with the given string name, using the given class loader.
+* Given the fully qualified name for a class or interface (in the same
+* format returned by {@code getName}) this method attempts to
+* locate, load, and link the class or interface.  The specified class
+* loader is used to load the class or interface.  If the parameter
+* {@code loader} is null, the class is loaded through the bootstrap
+* class loader.  The class is initialized only if the
+* {@code initialize} parameter is {@code true} and if it has
+* not been initialized earlier.
+*
+* <p> If {@code name} denotes a primitive type or void, an attempt
+* will be made to locate a user-defined class in the unnamed package whose
+* name is {@code name}. Therefore, this method cannot be used to
+* obtain any of the {@code Class} objects representing primitive
+* types or void.
+*
+* <p> If {@code name} denotes an array class, the component type of
+* the array class is loaded but not initialized.
+*
+* <p> For example, in an instance method the expression:
+*
+* <blockquote>
+*  {@code Class.forName("Foo")}
+* </blockquote>
+*
+* is equivalent to:
+*
+* <blockquote>
+*  {@code Class.forName("Foo", true, this.getClass().getClassLoader())}
+* </blockquote>
+*
+* Note that this method throws errors related to loading, linking or
+* initializing as specified in Sections 12.2, 12.3 and 12.4 of <em>The
+* Java Language Specification</em>.
+* Note that this method does not check whether the requested class
+* is accessible to its caller.
+*
+* @param name       fully qualified name of the desired class
+* @param initialize if {@code true} the class will be initialized.
+*                   See Section 12.4 of <em>The Java Language Specification</em>.
+* @param loader     class loader from which the class must be loaded
+* @return           class object representing the desired class
+*
+* @exception LinkageError if the linkage fails
+* @exception ExceptionInInitializerError if the initialization provoked
+*            by this method fails
+* @exception ClassNotFoundException if the class cannot be located by
+*            the specified class loader
+* @exception SecurityException
+*            if a security manager is present, and the {@code loader} is
+*            {@code null}, and the caller's class loader is not
+*            {@code null}, and the caller does not have the
+*            {@link RuntimePermission}{@code ("getClassLoader")}
+*
+* @see       java.lang.Class#forName(String)
+* @see       java.lang.ClassLoader
+* @since     1.2
+*/
+@CallerSensitive
+public static Class<?> forName(String name, boolean initialize,
+ClassLoader loader)
+throws ClassNotFoundException
+{
+Class<?> caller = null;
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+// Reflective call to get caller class is only needed if a security manager
+// is present.  Avoid the overhead of making this call otherwise.
+caller = Reflection.getCallerClass();
+if (loader == null) {
+ClassLoader ccl = ClassLoader.getClassLoader(caller);
+if (ccl != null) {
+sm.checkPermission(
+SecurityConstants.GET_CLASSLOADER_PERMISSION);
+}
+}
+}
+return forName0(name, initialize, loader, caller);
+}
+/** Called after security check for system loader access checks have been made. */
+private static native Class<?> forName0(String name, boolean initialize,
+ClassLoader loader,
+Class<?> caller)
+throws ClassNotFoundException;
+/**
+* Returns the {@code Class} with the given <a href="ClassLoader.html#name">
+* binary name</a> in the given module.
+*
+* <p> This method attempts to locate, load, and link the class or interface.
+* It does not run the class initializer.  If the class is not found, this
+* method returns {@code null}. </p>
+*
+* <p> If the class loader of the given module defines other modules and
+* the given name is a class defined in a different module, this method
+* returns {@code null} after the class is loaded. </p>
+*
+* <p> This method does not check whether the requested class is
+* accessible to its caller. </p>
+*
+* @apiNote
+* This method returns {@code null} on failure rather than
+* throwing a {@link ClassNotFoundException}, as is done by
+* the {@link #forName(String, boolean, ClassLoader)} method.
+* The security check is a stack-based permission check if the caller
+* loads a class in another module.
+*
+* @param  module   A module
+* @param  name     The <a href="ClassLoader.html#name">binary name</a>
+*                  of the class
+* @return {@code Class} object of the given name defined in the given module;
+*         {@code null} if not found.
+*
+* @throws NullPointerException if the given module or name is {@code null}
+*
+* @throws LinkageError if the linkage fails
+*
+* @throws SecurityException
+*         <ul>
+*         <li> if the caller is not the specified module and
+*         {@code RuntimePermission("getClassLoader")} permission is denied; or</li>
+*         <li> access to the module content is denied. For example,
+*         permission check will be performed when a class loader calls
+*         {@link ModuleReader#open(String)} to read the bytes of a class file
+*         in a module.</li>
+*         </ul>
+*
+* @since 9
+* @spec JPMS
+*/
+@CallerSensitive
+public static Class<?> forName(Module module, String name) {
+Objects.requireNonNull(module);
+Objects.requireNonNull(name);
+ClassLoader cl;
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+Class<?> caller = Reflection.getCallerClass();
+if (caller != null && caller.getModule() != module) {
+// if caller is null, Class.forName is the last java frame on the stack.
+// java.base has all permissions
+sm.checkPermission(SecurityConstants.GET_CLASSLOADER_PERMISSION);
+}
+PrivilegedAction<ClassLoader> pa = module::getClassLoader;
+cl = AccessController.doPrivileged(pa);
+} else {
+cl = module.getClassLoader();
+}
+if (cl != null) {
+return cl.loadClass(module, name);
+} else {
+return BootLoader.loadClass(module, name);
+}
+}
+/**
+* Creates a new instance of the class represented by this {@code Class}
+* object.  The class is instantiated as if by a {@code new}
+* expression with an empty argument list.  The class is initialized if it
+* has not already been initialized.
+*
+* @deprecated This method propagates any exception thrown by the
+* nullary constructor, including a checked exception.  Use of
+* this method effectively bypasses the compile-time exception
+* checking that would otherwise be performed by the compiler.
+* The {@link
+* java.lang.reflect.Constructor#newInstance(java.lang.Object...)
+* Constructor.newInstance} method avoids this problem by wrapping
+* any exception thrown by the constructor in a (checked) {@link
+* java.lang.reflect.InvocationTargetException}.
+*
+* <p>The call
+*
+* <pre>{@code
+* clazz.newInstance()
+* }</pre>
+*
+* can be replaced by
+*
+* <pre>{@code
+* clazz.getDeclaredConstructor().newInstance()
+* }</pre>
+*
+* The latter sequence of calls is inferred to be able to throw
+* the additional exception types {@link
+* InvocationTargetException} and {@link
+* NoSuchMethodException}. Both of these exception types are
+* subclasses of {@link ReflectiveOperationException}.
+*
+* @return  a newly allocated instance of the class represented by this
+*          object.
+* @throws  IllegalAccessException  if the class or its nullary
+*          constructor is not accessible.
+* @throws  InstantiationException
+*          if this {@code Class} represents an abstract class,
+*          an interface, an array class, a primitive type, or void;
+*          or if the class has no nullary constructor;
+*          or if the instantiation fails for some other reason.
+* @throws  ExceptionInInitializerError if the initialization
+*          provoked by this method fails.
+* @throws  SecurityException
+*          If a security manager, <i>s</i>, is present and
+*          the caller's class loader is not the same as or an
+*          ancestor of the class loader for the current class and
+*          invocation of {@link SecurityManager#checkPackageAccess
+*          s.checkPackageAccess()} denies access to the package
+*          of this class.
+*/
+@CallerSensitive
+@Deprecated(since="9")
+public T newInstance()
+throws InstantiationException, IllegalAccessException
+{
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.PUBLIC, Reflection.getCallerClass(), false);
+}
+// NOTE: the following code may not be strictly correct under
+// the current Java memory model.
+// Constructor lookup
+if (cachedConstructor == null) {
+if (this == Class.class) {
+throw new IllegalAccessException(
+"Can not call newInstance() on the Class for java.lang.Class"
+);
+}
+try {
+Class<?>[] empty = {};
+final Constructor<T> c = getReflectionFactory().copyConstructor(
+getConstructor0(empty, Member.DECLARED));
+// Disable accessibility checks on the constructor
+// since we have to do the security check here anyway
+// (the stack depth is wrong for the Constructor's
+// security check to work)
+java.security.AccessController.doPrivileged(
+new java.security.PrivilegedAction<>() {
+public Void run() {
+c.setAccessible(true);
+return null;
+}
+});
+cachedConstructor = c;
+} catch (NoSuchMethodException e) {
+throw (InstantiationException)
+new InstantiationException(getName()).initCause(e);
+}
+}
+Constructor<T> tmpConstructor = cachedConstructor;
+// Security check (same as in java.lang.reflect.Constructor)
+Class<?> caller = Reflection.getCallerClass();
+if (newInstanceCallerCache != caller) {
+int modifiers = tmpConstructor.getModifiers();
+Reflection.ensureMemberAccess(caller, this, this, modifiers);
+newInstanceCallerCache = caller;
+}
+// Run constructor
+try {
+return tmpConstructor.newInstance((Object[])null);
+} catch (InvocationTargetException e) {
+Unsafe.getUnsafe().throwException(e.getTargetException());
+// Not reached
+return null;
+}
+}
+private transient volatile Constructor<T> cachedConstructor;
+private transient volatile Class<?>       newInstanceCallerCache;
+/**
+* Determines if the specified {@code Object} is assignment-compatible
+* with the object represented by this {@code Class}.  This method is
+* the dynamic equivalent of the Java language {@code instanceof}
+* operator. The method returns {@code true} if the specified
+* {@code Object} argument is non-null and can be cast to the
+* reference type represented by this {@code Class} object without
+* raising a {@code ClassCastException.} It returns {@code false}
+* otherwise.
+*
+* <p> Specifically, if this {@code Class} object represents a
+* declared class, this method returns {@code true} if the specified
+* {@code Object} argument is an instance of the represented class (or
+* of any of its subclasses); it returns {@code false} otherwise. If
+* this {@code Class} object represents an array class, this method
+* returns {@code true} if the specified {@code Object} argument
+* can be converted to an object of the array class by an identity
+* conversion or by a widening reference conversion; it returns
+* {@code false} otherwise. If this {@code Class} object
+* represents an interface, this method returns {@code true} if the
+* class or any superclass of the specified {@code Object} argument
+* implements this interface; it returns {@code false} otherwise. If
+* this {@code Class} object represents a primitive type, this method
+* returns {@code false}.
+*
+* @param   obj the object to check
+* @return  true if {@code obj} is an instance of this class
+*
+* @since 1.1
+*/
+@HotSpotIntrinsicCandidate
+public native boolean isInstance(Object obj);
+/**
+* Determines if the class or interface represented by this
+* {@code Class} object is either the same as, or is a superclass or
+* superinterface of, the class or interface represented by the specified
+* {@code Class} parameter. It returns {@code true} if so;
+* otherwise it returns {@code false}. If this {@code Class}
+* object represents a primitive type, this method returns
+* {@code true} if the specified {@code Class} parameter is
+* exactly this {@code Class} object; otherwise it returns
+* {@code false}.
+*
+* <p> Specifically, this method tests whether the type represented by the
+* specified {@code Class} parameter can be converted to the type
+* represented by this {@code Class} object via an identity conversion
+* or via a widening reference conversion. See <em>The Java Language
+* Specification</em>, sections 5.1.1 and 5.1.4 , for details.
+*
+* @param cls the {@code Class} object to be checked
+* @return the {@code boolean} value indicating whether objects of the
+* type {@code cls} can be assigned to objects of this class
+* @exception NullPointerException if the specified Class parameter is
+*            null.
+* @since 1.1
+*/
+@HotSpotIntrinsicCandidate
+public native boolean isAssignableFrom(Class<?> cls);
+/**
+* Determines if the specified {@code Class} object represents an
+* interface type.
+*
+* @return  {@code true} if this object represents an interface;
+*          {@code false} otherwise.
+*/
+@HotSpotIntrinsicCandidate
+public native boolean isInterface();
+/**
+* Determines if this {@code Class} object represents an array class.
+*
+* @return  {@code true} if this object represents an array class;
+*          {@code false} otherwise.
+* @since   1.1
+*/
+@HotSpotIntrinsicCandidate
+public native boolean isArray();
+/**
+* Determines if the specified {@code Class} object represents a
+* primitive type.
+*
+* <p> There are nine predefined {@code Class} objects to represent
+* the eight primitive types and void.  These are created by the Java
+* Virtual Machine, and have the same names as the primitive types that
+* they represent, namely {@code boolean}, {@code byte},
+* {@code char}, {@code short}, {@code int},
+* {@code long}, {@code float}, and {@code double}.
+*
+* <p> These objects may only be accessed via the following public static
+* final variables, and are the only {@code Class} objects for which
+* this method returns {@code true}.
+*
+* @return true if and only if this class represents a primitive type
+*
+* @see     java.lang.Boolean#TYPE
+* @see     java.lang.Character#TYPE
+* @see     java.lang.Byte#TYPE
+* @see     java.lang.Short#TYPE
+* @see     java.lang.Integer#TYPE
+* @see     java.lang.Long#TYPE
+* @see     java.lang.Float#TYPE
+* @see     java.lang.Double#TYPE
+* @see     java.lang.Void#TYPE
+* @since 1.1
+*/
+@HotSpotIntrinsicCandidate
+public native boolean isPrimitive();
+/**
+* Returns true if this {@code Class} object represents an annotation
+* type.  Note that if this method returns true, {@link #isInterface()}
+* would also return true, as all annotation types are also interfaces.
+*
+* @return {@code true} if this class object represents an annotation
+*      type; {@code false} otherwise
+* @since 1.5
+*/
+public boolean isAnnotation() {
+return (getModifiers() & ANNOTATION) != 0;
+}
+/**
+* Returns {@code true} if this class is a synthetic class;
+* returns {@code false} otherwise.
+* @return {@code true} if and only if this class is a synthetic class as
+*         defined by the Java Language Specification.
+* @jls 13.1 The Form of a Binary
+* @since 1.5
+*/
+public boolean isSynthetic() {
+return (getModifiers() & SYNTHETIC) != 0;
+}
+/**
+* Returns the  name of the entity (class, interface, array class,
+* primitive type, or void) represented by this {@code Class} object,
+* as a {@code String}.
+*
+* <p> If this class object represents a reference type that is not an
+* array type then the binary name of the class is returned, as specified
+* by
+* <cite>The Java&trade; Language Specification</cite>.
+*
+* <p> If this class object represents a primitive type or void, then the
+* name returned is a {@code String} equal to the Java language
+* keyword corresponding to the primitive type or void.
+*
+* <p> If this class object represents a class of arrays, then the internal
+* form of the name consists of the name of the element type preceded by
+* one or more '{@code [}' characters representing the depth of the array
+* nesting.  The encoding of element type names is as follows:
+*
+* <blockquote><table class="striped">
+* <caption style="display:none">Element types and encodings</caption>
+* <thead>
+* <tr><th scope="col"> Element Type <th scope="col"> Encoding
+* </thead>
+* <tbody style="text-align:left">
+* <tr><th scope="row"> boolean      <td style="text-align:center"> Z
+* <tr><th scope="row"> byte         <td style="text-align:center"> B
+* <tr><th scope="row"> char         <td style="text-align:center"> C
+* <tr><th scope="row"> class or interface
+*                                   <td style="text-align:center"> L<i>classname</i>;
+* <tr><th scope="row"> double       <td style="text-align:center"> D
+* <tr><th scope="row"> float        <td style="text-align:center"> F
+* <tr><th scope="row"> int          <td style="text-align:center"> I
+* <tr><th scope="row"> long         <td style="text-align:center"> J
+* <tr><th scope="row"> short        <td style="text-align:center"> S
+* </tbody>
+* </table></blockquote>
+*
+* <p> The class or interface name <i>classname</i> is the binary name of
+* the class specified above.
+*
+* <p> Examples:
+* <blockquote><pre>
+* String.class.getName()
+*     returns "java.lang.String"
+* byte.class.getName()
+*     returns "byte"
+* (new Object[3]).getClass().getName()
+*     returns "[Ljava.lang.Object;"
+* (new int[3][4][5][6][7][8][9]).getClass().getName()
+*     returns "[[[[[[[I"
+* </pre></blockquote>
+*
+* @return  the name of the class or interface
+*          represented by this object.
+*/
+public String getName() {
+String name = this.name;
+if (name == null)
+this.name = name = getName0();
+return name;
+}
+// cache the name to reduce the number of calls into the VM
+private transient String name;
+private native String getName0();
+/**
+* Returns the class loader for the class.  Some implementations may use
+* null to represent the bootstrap class loader. This method will return
+* null in such implementations if this class was loaded by the bootstrap
+* class loader.
+*
+* <p>If this object
+* represents a primitive type or void, null is returned.
+*
+* @return  the class loader that loaded the class or interface
+*          represented by this object.
+* @throws  SecurityException
+*          if a security manager is present, and the caller's class loader
+*          is not {@code null} and is not the same as or an ancestor of the
+*          class loader for the class whose class loader is requested,
+*          and the caller does not have the
+*          {@link RuntimePermission}{@code ("getClassLoader")}
+* @see java.lang.ClassLoader
+* @see SecurityManager#checkPermission
+* @see java.lang.RuntimePermission
+*/
+@CallerSensitive
+@ForceInline // to ensure Reflection.getCallerClass optimization
+public ClassLoader getClassLoader() {
+ClassLoader cl = getClassLoader0();
+if (cl == null)
+return null;
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+ClassLoader.checkClassLoaderPermission(cl, Reflection.getCallerClass());
+}
+return cl;
+}
+// Package-private to allow ClassLoader access
+ClassLoader getClassLoader0() { return classLoader; }
+/**
+* Returns the module that this class or interface is a member of.
+*
+* If this class represents an array type then this method returns the
+* {@code Module} for the element type. If this class represents a
+* primitive type or void, then the {@code Module} object for the
+* {@code java.base} module is returned.
+*
+* If this class is in an unnamed module then the {@link
+* ClassLoader#getUnnamedModule() unnamed} {@code Module} of the class
+* loader for this class is returned.
+*
+* @return the module that this class or interface is a member of
+*
+* @since 9
+* @spec JPMS
+*/
+public Module getModule() {
+return module;
+}
+// set by VM
+private transient Module module;
+// Initialized in JVM not by private constructor
+// This field is filtered from reflection access, i.e. getDeclaredField
+// will throw NoSuchFieldException
+private final ClassLoader classLoader;
+/**
+* Returns an array of {@code TypeVariable} objects that represent the
+* type variables declared by the generic declaration represented by this
+* {@code GenericDeclaration} object, in declaration order.  Returns an
+* array of length 0 if the underlying generic declaration declares no type
+* variables.
+*
+* @return an array of {@code TypeVariable} objects that represent
+*     the type variables declared by this generic declaration
+* @throws java.lang.reflect.GenericSignatureFormatError if the generic
+*     signature of this generic declaration does not conform to
+*     the format specified in
+*     <cite>The Java&trade; Virtual Machine Specification</cite>
+* @since 1.5
+*/
+@SuppressWarnings("unchecked")
+public TypeVariable<Class<T>>[] getTypeParameters() {
+ClassRepository info = getGenericInfo();
+if (info != null)
+return (TypeVariable<Class<T>>[])info.getTypeParameters();
+else
+return (TypeVariable<Class<T>>[])new TypeVariable<?>[0];
+}
+/**
+* Returns the {@code Class} representing the direct superclass of the
+* entity (class, interface, primitive type or void) represented by
+* this {@code Class}.  If this {@code Class} represents either the
+* {@code Object} class, an interface, a primitive type, or void, then
+* null is returned.  If this object represents an array class then the
+* {@code Class} object representing the {@code Object} class is
+* returned.
+*
+* @return the direct superclass of the class represented by this object
+*/
+@HotSpotIntrinsicCandidate
+public native Class<? super T> getSuperclass();
+/**
+* Returns the {@code Type} representing the direct superclass of
+* the entity (class, interface, primitive type or void) represented by
+* this {@code Class}.
+*
+* <p>If the superclass is a parameterized type, the {@code Type}
+* object returned must accurately reflect the actual type
+* parameters used in the source code. The parameterized type
+* representing the superclass is created if it had not been
+* created before. See the declaration of {@link
+* java.lang.reflect.ParameterizedType ParameterizedType} for the
+* semantics of the creation process for parameterized types.  If
+* this {@code Class} represents either the {@code Object}
+* class, an interface, a primitive type, or void, then null is
+* returned.  If this object represents an array class then the
+* {@code Class} object representing the {@code Object} class is
+* returned.
+*
+* @throws java.lang.reflect.GenericSignatureFormatError if the generic
+*     class signature does not conform to the format specified in
+*     <cite>The Java&trade; Virtual Machine Specification</cite>
+* @throws TypeNotPresentException if the generic superclass
+*     refers to a non-existent type declaration
+* @throws java.lang.reflect.MalformedParameterizedTypeException if the
+*     generic superclass refers to a parameterized type that cannot be
+*     instantiated  for any reason
+* @return the direct superclass of the class represented by this object
+* @since 1.5
+*/
+public Type getGenericSuperclass() {
+ClassRepository info = getGenericInfo();
+if (info == null) {
+return getSuperclass();
+}
+// Historical irregularity:
+// Generic signature marks interfaces with superclass = Object
+// but this API returns null for interfaces
+if (isInterface()) {
+return null;
+}
+return info.getSuperclass();
+}
+/**
+* Gets the package of this class.
+*
+* <p>If this class represents an array type, a primitive type or void,
+* this method returns {@code null}.
+*
+* @return the package of this class.
+* @revised 9
+* @spec JPMS
+*/
+public Package getPackage() {
+if (isPrimitive() || isArray()) {
+return null;
+}
+ClassLoader cl = getClassLoader0();
+return cl != null ? cl.definePackage(this)
+: BootLoader.definePackage(this);
+}
+/**
+* Returns the fully qualified package name.
+*
+* <p> If this class is a top level class, then this method returns the fully
+* qualified name of the package that the class is a member of, or the
+* empty string if the class is in an unnamed package.
+*
+* <p> If this class is a member class, then this method is equivalent to
+* invoking {@code getPackageName()} on the {@link #getEnclosingClass
+* enclosing class}.
+*
+* <p> If this class is a {@link #isLocalClass local class} or an {@link
+* #isAnonymousClass() anonymous class}, then this method is equivalent to
+* invoking {@code getPackageName()} on the {@link #getDeclaringClass
+* declaring class} of the {@link #getEnclosingMethod enclosing method} or
+* {@link #getEnclosingConstructor enclosing constructor}.
+*
+* <p> If this class represents an array type then this method returns the
+* package name of the element type. If this class represents a primitive
+* type or void then the package name "{@code java.lang}" is returned.
+*
+* @return the fully qualified package name
+*
+* @since 9
+* @spec JPMS
+* @jls 6.7  Fully Qualified Names
+*/
+public String getPackageName() {
+String pn = this.packageName;
+if (pn == null) {
+Class<?> c = this;
+while (c.isArray()) {
+c = c.getComponentType();
+}
+if (c.isPrimitive()) {
+pn = "java.lang";
+} else {
+String cn = c.getName();
+int dot = cn.lastIndexOf('.');
+pn = (dot != -1) ? cn.substring(0, dot).intern() : "";
+}
+this.packageName = pn;
+}
+return pn;
+}
+// cached package name
+private transient String packageName;
+/**
+* Returns the interfaces directly implemented by the class or interface
+* represented by this object.
+*
+* <p>If this object represents a class, the return value is an array
+* containing objects representing all interfaces directly implemented by
+* the class.  The order of the interface objects in the array corresponds
+* to the order of the interface names in the {@code implements} clause of
+* the declaration of the class represented by this object.  For example,
+* given the declaration:
+* <blockquote>
+* {@code class Shimmer implements FloorWax, DessertTopping { ... }}
+* </blockquote>
+* suppose the value of {@code s} is an instance of
+* {@code Shimmer}; the value of the expression:
+* <blockquote>
+* {@code s.getClass().getInterfaces()[0]}
+* </blockquote>
+* is the {@code Class} object that represents interface
+* {@code FloorWax}; and the value of:
+* <blockquote>
+* {@code s.getClass().getInterfaces()[1]}
+* </blockquote>
+* is the {@code Class} object that represents interface
+* {@code DessertTopping}.
+*
+* <p>If this object represents an interface, the array contains objects
+* representing all interfaces directly extended by the interface.  The
+* order of the interface objects in the array corresponds to the order of
+* the interface names in the {@code extends} clause of the declaration of
+* the interface represented by this object.
+*
+* <p>If this object represents a class or interface that implements no
+* interfaces, the method returns an array of length 0.
+*
+* <p>If this object represents a primitive type or void, the method
+* returns an array of length 0.
+*
+* <p>If this {@code Class} object represents an array type, the
+* interfaces {@code Cloneable} and {@code java.io.Serializable} are
+* returned in that order.
+*
+* @return an array of interfaces directly implemented by this class
+*/
+public Class<?>[] getInterfaces() {
+// defensively copy before handing over to user code
+return getInterfaces(true);
+}
+private Class<?>[] getInterfaces(boolean cloneArray) {
+ReflectionData<T> rd = reflectionData();
+if (rd == null) {
+// no cloning required
+return getInterfaces0();
+} else {
+Class<?>[] interfaces = rd.interfaces;
+if (interfaces == null) {
+interfaces = getInterfaces0();
+rd.interfaces = interfaces;
+}
+// defensively copy if requested
+return cloneArray ? interfaces.clone() : interfaces;
+}
+}
+private native Class<?>[] getInterfaces0();
+/**
+* Returns the {@code Type}s representing the interfaces
+* directly implemented by the class or interface represented by
+* this object.
+*
+* <p>If a superinterface is a parameterized type, the
+* {@code Type} object returned for it must accurately reflect
+* the actual type parameters used in the source code. The
+* parameterized type representing each superinterface is created
+* if it had not been created before. See the declaration of
+* {@link java.lang.reflect.ParameterizedType ParameterizedType}
+* for the semantics of the creation process for parameterized
+* types.
+*
+* <p>If this object represents a class, the return value is an array
+* containing objects representing all interfaces directly implemented by
+* the class.  The order of the interface objects in the array corresponds
+* to the order of the interface names in the {@code implements} clause of
+* the declaration of the class represented by this object.
+*
+* <p>If this object represents an interface, the array contains objects
+* representing all interfaces directly extended by the interface.  The
+* order of the interface objects in the array corresponds to the order of
+* the interface names in the {@code extends} clause of the declaration of
+* the interface represented by this object.
+*
+* <p>If this object represents a class or interface that implements no
+* interfaces, the method returns an array of length 0.
+*
+* <p>If this object represents a primitive type or void, the method
+* returns an array of length 0.
+*
+* <p>If this {@code Class} object represents an array type, the
+* interfaces {@code Cloneable} and {@code java.io.Serializable} are
+* returned in that order.
+*
+* @throws java.lang.reflect.GenericSignatureFormatError
+*     if the generic class signature does not conform to the format
+*     specified in
+*     <cite>The Java&trade; Virtual Machine Specification</cite>
+* @throws TypeNotPresentException if any of the generic
+*     superinterfaces refers to a non-existent type declaration
+* @throws java.lang.reflect.MalformedParameterizedTypeException
+*     if any of the generic superinterfaces refer to a parameterized
+*     type that cannot be instantiated for any reason
+* @return an array of interfaces directly implemented by this class
+* @since 1.5
+*/
+public Type[] getGenericInterfaces() {
+ClassRepository info = getGenericInfo();
+return (info == null) ?  getInterfaces() : info.getSuperInterfaces();
+}
+/**
+* Returns the {@code Class} representing the component type of an
+* array.  If this class does not represent an array class this method
+* returns null.
+*
+* @return the {@code Class} representing the component type of this
+* class if this class is an array
+* @see     java.lang.reflect.Array
+* @since 1.1
+*/
+public Class<?> getComponentType() {
+// Only return for array types. Storage may be reused for Class for instance types.
+if (isArray()) {
+return componentType;
+} else {
+return null;
+}
+}
+private final Class<?> componentType;
+/**
+* Returns the Java language modifiers for this class or interface, encoded
+* in an integer. The modifiers consist of the Java Virtual Machine's
+* constants for {@code public}, {@code protected},
+* {@code private}, {@code final}, {@code static},
+* {@code abstract} and {@code interface}; they should be decoded
+* using the methods of class {@code Modifier}.
+*
+* <p> If the underlying class is an array class, then its
+* {@code public}, {@code private} and {@code protected}
+* modifiers are the same as those of its component type.  If this
+* {@code Class} represents a primitive type or void, its
+* {@code public} modifier is always {@code true}, and its
+* {@code protected} and {@code private} modifiers are always
+* {@code false}. If this object represents an array class, a
+* primitive type or void, then its {@code final} modifier is always
+* {@code true} and its interface modifier is always
+* {@code false}. The values of its other modifiers are not determined
+* by this specification.
+*
+* <p> The modifier encodings are defined in <em>The Java Virtual Machine
+* Specification</em>, table 4.1.
+*
+* @return the {@code int} representing the modifiers for this class
+* @see     java.lang.reflect.Modifier
+* @since 1.1
+*/
+@HotSpotIntrinsicCandidate
+public native int getModifiers();
+/**
+* Gets the signers of this class.
+*
+* @return  the signers of this class, or null if there are no signers.  In
+*          particular, this method returns null if this object represents
+*          a primitive type or void.
+* @since   1.1
+*/
+public native Object[] getSigners();
+/**
+* Set the signers of this class.
+*/
+native void setSigners(Object[] signers);
+/**
+* If this {@code Class} object represents a local or anonymous
+* class within a method, returns a {@link
+* java.lang.reflect.Method Method} object representing the
+* immediately enclosing method of the underlying class. Returns
+* {@code null} otherwise.
+*
+* In particular, this method returns {@code null} if the underlying
+* class is a local or anonymous class immediately enclosed by a type
+* declaration, instance initializer or static initializer.
+*
+* @return the immediately enclosing method of the underlying class, if
+*     that class is a local or anonymous class; otherwise {@code null}.
+*
+* @throws SecurityException
+*         If a security manager, <i>s</i>, is present and any of the
+*         following conditions is met:
+*
+*         <ul>
+*
+*         <li> the caller's class loader is not the same as the
+*         class loader of the enclosing class and invocation of
+*         {@link SecurityManager#checkPermission
+*         s.checkPermission} method with
+*         {@code RuntimePermission("accessDeclaredMembers")}
+*         denies access to the methods within the enclosing class
+*
+*         <li> the caller's class loader is not the same as or an
+*         ancestor of the class loader for the enclosing class and
+*         invocation of {@link SecurityManager#checkPackageAccess
+*         s.checkPackageAccess()} denies access to the package
+*         of the enclosing class
+*
+*         </ul>
+* @since 1.5
+*/
+@CallerSensitive
+public Method getEnclosingMethod() throws SecurityException {
+EnclosingMethodInfo enclosingInfo = getEnclosingMethodInfo();
+if (enclosingInfo == null)
+return null;
+else {
+if (!enclosingInfo.isMethod())
+return null;
+MethodRepository typeInfo = MethodRepository.make(enclosingInfo.getDescriptor(),
+getFactory());
+Class<?>   returnType       = toClass(typeInfo.getReturnType());
+Type []    parameterTypes   = typeInfo.getParameterTypes();
+Class<?>[] parameterClasses = new Class<?>[parameterTypes.length];
+// Convert Types to Classes; returned types *should*
+// be class objects since the methodDescriptor's used
+// don't have generics information
+for(int i = 0; i < parameterClasses.length; i++)
+parameterClasses[i] = toClass(parameterTypes[i]);
+// Perform access check
+final Class<?> enclosingCandidate = enclosingInfo.getEnclosingClass();
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+enclosingCandidate.checkMemberAccess(sm, Member.DECLARED,
+Reflection.getCallerClass(), true);
+}
+Method[] candidates = enclosingCandidate.privateGetDeclaredMethods(false);
+/*
+* Loop over all declared methods; match method name,
+* number of and type of parameters, *and* return
+* type.  Matching return type is also necessary
+* because of covariant returns, etc.
+*/
+ReflectionFactory fact = getReflectionFactory();
+for (Method m : candidates) {
+if (m.getName().equals(enclosingInfo.getName()) &&
+arrayContentsEq(parameterClasses,
+fact.getExecutableSharedParameterTypes(m))) {
+// finally, check return type
+if (m.getReturnType().equals(returnType)) {
+return fact.copyMethod(m);
+}
+}
+}
+throw new InternalError("Enclosing method not found");
+}
+}
+private native Object[] getEnclosingMethod0();
+private EnclosingMethodInfo getEnclosingMethodInfo() {
+Object[] enclosingInfo = getEnclosingMethod0();
+if (enclosingInfo == null)
+return null;
+else {
+return new EnclosingMethodInfo(enclosingInfo);
+}
+}
+private static final class EnclosingMethodInfo {
+private final Class<?> enclosingClass;
+private final String name;
+private final String descriptor;
+static void validate(Object[] enclosingInfo) {
+if (enclosingInfo.length != 3)
+throw new InternalError("Malformed enclosing method information");
+try {
+// The array is expected to have three elements:
+// the immediately enclosing class
+Class<?> enclosingClass = (Class<?>)enclosingInfo[0];
+assert(enclosingClass != null);
+// the immediately enclosing method or constructor's
+// name (can be null).
+String name = (String)enclosingInfo[1];
+// the immediately enclosing method or constructor's
+// descriptor (null iff name is).
+String descriptor = (String)enclosingInfo[2];
+assert((name != null && descriptor != null) || name == descriptor);
+} catch (ClassCastException cce) {
+throw new InternalError("Invalid type in enclosing method information", cce);
+}
+}
+EnclosingMethodInfo(Object[] enclosingInfo) {
+validate(enclosingInfo);
+this.enclosingClass = (Class<?>)enclosingInfo[0];
+this.name = (String)enclosingInfo[1];
+this.descriptor = (String)enclosingInfo[2];
+}
+boolean isPartial() {
+return enclosingClass == null || name == null || descriptor == null;
+}
+boolean isConstructor() { return !isPartial() && "<init>".equals(name); }
+boolean isMethod() { return !isPartial() && !isConstructor() && !"<clinit>".equals(name); }
+Class<?> getEnclosingClass() { return enclosingClass; }
+String getName() { return name; }
+String getDescriptor() { return descriptor; }
+}
+private static Class<?> toClass(Type o) {
+if (o instanceof GenericArrayType)
+return Array.newInstance(toClass(((GenericArrayType)o).getGenericComponentType()),
+0)
+.getClass();
+return (Class<?>)o;
+}
+/**
+* If this {@code Class} object represents a local or anonymous
+* class within a constructor, returns a {@link
+* java.lang.reflect.Constructor Constructor} object representing
+* the immediately enclosing constructor of the underlying
+* class. Returns {@code null} otherwise.  In particular, this
+* method returns {@code null} if the underlying class is a local
+* or anonymous class immediately enclosed by a type declaration,
+* instance initializer or static initializer.
+*
+* @return the immediately enclosing constructor of the underlying class, if
+*     that class is a local or anonymous class; otherwise {@code null}.
+* @throws SecurityException
+*         If a security manager, <i>s</i>, is present and any of the
+*         following conditions is met:
+*
+*         <ul>
+*
+*         <li> the caller's class loader is not the same as the
+*         class loader of the enclosing class and invocation of
+*         {@link SecurityManager#checkPermission
+*         s.checkPermission} method with
+*         {@code RuntimePermission("accessDeclaredMembers")}
+*         denies access to the constructors within the enclosing class
+*
+*         <li> the caller's class loader is not the same as or an
+*         ancestor of the class loader for the enclosing class and
+*         invocation of {@link SecurityManager#checkPackageAccess
+*         s.checkPackageAccess()} denies access to the package
+*         of the enclosing class
+*
+*         </ul>
+* @since 1.5
+*/
+@CallerSensitive
+public Constructor<?> getEnclosingConstructor() throws SecurityException {
+EnclosingMethodInfo enclosingInfo = getEnclosingMethodInfo();
+if (enclosingInfo == null)
+return null;
+else {
+if (!enclosingInfo.isConstructor())
+return null;
+ConstructorRepository typeInfo = ConstructorRepository.make(enclosingInfo.getDescriptor(),
+getFactory());
+Type []    parameterTypes   = typeInfo.getParameterTypes();
+Class<?>[] parameterClasses = new Class<?>[parameterTypes.length];
+// Convert Types to Classes; returned types *should*
+// be class objects since the methodDescriptor's used
+// don't have generics information
+for(int i = 0; i < parameterClasses.length; i++)
+parameterClasses[i] = toClass(parameterTypes[i]);
+// Perform access check
+final Class<?> enclosingCandidate = enclosingInfo.getEnclosingClass();
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+enclosingCandidate.checkMemberAccess(sm, Member.DECLARED,
+Reflection.getCallerClass(), true);
+}
+Constructor<?>[] candidates = enclosingCandidate
+.privateGetDeclaredConstructors(false);
+/*
+* Loop over all declared constructors; match number
+* of and type of parameters.
+*/
+ReflectionFactory fact = getReflectionFactory();
+for (Constructor<?> c : candidates) {
+if (arrayContentsEq(parameterClasses,
+fact.getExecutableSharedParameterTypes(c))) {
+return fact.copyConstructor(c);
+}
+}
+throw new InternalError("Enclosing constructor not found");
+}
+}
+/**
+* If the class or interface represented by this {@code Class} object
+* is a member of another class, returns the {@code Class} object
+* representing the class in which it was declared.  This method returns
+* null if this class or interface is not a member of any other class.  If
+* this {@code Class} object represents an array class, a primitive
+* type, or void,then this method returns null.
+*
+* @return the declaring class for this class
+* @throws SecurityException
+*         If a security manager, <i>s</i>, is present and the caller's
+*         class loader is not the same as or an ancestor of the class
+*         loader for the declaring class and invocation of {@link
+*         SecurityManager#checkPackageAccess s.checkPackageAccess()}
+*         denies access to the package of the declaring class
+* @since 1.1
+*/
+@CallerSensitive
+public Class<?> getDeclaringClass() throws SecurityException {
+final Class<?> candidate = getDeclaringClass0();
+if (candidate != null) {
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+candidate.checkPackageAccess(sm,
+ClassLoader.getClassLoader(Reflection.getCallerClass()), true);
+}
+}
+return candidate;
+}
+private native Class<?> getDeclaringClass0();
+/**
+* Returns the immediately enclosing class of the underlying
+* class.  If the underlying class is a top level class this
+* method returns {@code null}.
+* @return the immediately enclosing class of the underlying class
+* @exception  SecurityException
+*             If a security manager, <i>s</i>, is present and the caller's
+*             class loader is not the same as or an ancestor of the class
+*             loader for the enclosing class and invocation of {@link
+*             SecurityManager#checkPackageAccess s.checkPackageAccess()}
+*             denies access to the package of the enclosing class
+* @since 1.5
+*/
+@CallerSensitive
+public Class<?> getEnclosingClass() throws SecurityException {
+// There are five kinds of classes (or interfaces):
+// a) Top level classes
+// b) Nested classes (static member classes)
+// c) Inner classes (non-static member classes)
+// d) Local classes (named classes declared within a method)
+// e) Anonymous classes
+// JVM Spec 4.7.7: A class must have an EnclosingMethod
+// attribute if and only if it is a local class or an
+// anonymous class.
+EnclosingMethodInfo enclosingInfo = getEnclosingMethodInfo();
+Class<?> enclosingCandidate;
+if (enclosingInfo == null) {
+// This is a top level or a nested class or an inner class (a, b, or c)
+enclosingCandidate = getDeclaringClass0();
+} else {
+Class<?> enclosingClass = enclosingInfo.getEnclosingClass();
+// This is a local class or an anonymous class (d or e)
+if (enclosingClass == this || enclosingClass == null)
+throw new InternalError("Malformed enclosing method information");
+else
+enclosingCandidate = enclosingClass;
+}
+if (enclosingCandidate != null) {
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+enclosingCandidate.checkPackageAccess(sm,
+ClassLoader.getClassLoader(Reflection.getCallerClass()), true);
+}
+}
+return enclosingCandidate;
+}
+/**
+* Returns the simple name of the underlying class as given in the
+* source code. Returns an empty string if the underlying class is
+* anonymous.
+*
+* <p>The simple name of an array is the simple name of the
+* component type with "[]" appended.  In particular the simple
+* name of an array whose component type is anonymous is "[]".
+*
+* @return the simple name of the underlying class
+* @since 1.5
+*/
+public String getSimpleName() {
+if (isArray())
+return getComponentType().getSimpleName()+"[]";
+String simpleName = getSimpleBinaryName();
+if (simpleName == null) { // top level class
+simpleName = getName();
+return simpleName.substring(simpleName.lastIndexOf('.')+1); // strip the package name
+}
+return simpleName;
+}
+/**
+* Return an informative string for the name of this type.
+*
+* @return an informative string for the name of this type
+* @since 1.8
+*/
+public String getTypeName() {
+if (isArray()) {
+try {
+Class<?> cl = this;
+int dimensions = 0;
+while (cl.isArray()) {
+dimensions++;
+cl = cl.getComponentType();
+}
+StringBuilder sb = new StringBuilder();
+sb.append(cl.getName());
+for (int i = 0; i < dimensions; i++) {
+sb.append("[]");
+}
+return sb.toString();
+} catch (Throwable e) { /*FALLTHRU*/ }
+}
+return getName();
+}
+/**
+* Returns the canonical name of the underlying class as
+* defined by the Java Language Specification.  Returns null if
+* the underlying class does not have a canonical name (i.e., if
+* it is a local or anonymous class or an array whose component
+* type does not have a canonical name).
+* @return the canonical name of the underlying class if it exists, and
+* {@code null} otherwise.
+* @since 1.5
+*/
+public String getCanonicalName() {
+if (isArray()) {
+String canonicalName = getComponentType().getCanonicalName();
+if (canonicalName != null)
+return canonicalName + "[]";
+else
+return null;
+}
+if (isLocalOrAnonymousClass())
+return null;
+Class<?> enclosingClass = getEnclosingClass();
+if (enclosingClass == null) { // top level class
+return getName();
+} else {
+String enclosingName = enclosingClass.getCanonicalName();
+if (enclosingName == null)
+return null;
+return enclosingName + "." + getSimpleName();
+}
+}
+/**
+* Returns {@code true} if and only if the underlying class
+* is an anonymous class.
+*
+* @return {@code true} if and only if this class is an anonymous class.
+* @since 1.5
+*/
+public boolean isAnonymousClass() {
+return !isArray() && isLocalOrAnonymousClass() &&
+getSimpleBinaryName0() == null;
+}
+/**
+* Returns {@code true} if and only if the underlying class
+* is a local class.
+*
+* @return {@code true} if and only if this class is a local class.
+* @since 1.5
+*/
+public boolean isLocalClass() {
+return isLocalOrAnonymousClass() &&
+(isArray() || getSimpleBinaryName0() != null);
+}
+/**
+* Returns {@code true} if and only if the underlying class
+* is a member class.
+*
+* @return {@code true} if and only if this class is a member class.
+* @since 1.5
+*/
+public boolean isMemberClass() {
+return !isLocalOrAnonymousClass() && getDeclaringClass0() != null;
+}
+/**
+* Returns the "simple binary name" of the underlying class, i.e.,
+* the binary name without the leading enclosing class name.
+* Returns {@code null} if the underlying class is a top level
+* class.
+*/
+private String getSimpleBinaryName() {
+if (isTopLevelClass())
+return null;
+String name = getSimpleBinaryName0();
+if (name == null) // anonymous class
+return "";
+return name;
+}
+private native String getSimpleBinaryName0();
+/**
+* Returns {@code true} if this is a top level class.  Returns {@code false}
+* otherwise.
+*/
+private boolean isTopLevelClass() {
+return !isLocalOrAnonymousClass() && getDeclaringClass0() == null;
+}
+/**
+* Returns {@code true} if this is a local class or an anonymous
+* class.  Returns {@code false} otherwise.
+*/
+private boolean isLocalOrAnonymousClass() {
+// JVM Spec 4.7.7: A class must have an EnclosingMethod
+// attribute if and only if it is a local class or an
+// anonymous class.
+return hasEnclosingMethodInfo();
+}
+private boolean hasEnclosingMethodInfo() {
+Object[] enclosingInfo = getEnclosingMethod0();
+if (enclosingInfo != null) {
+EnclosingMethodInfo.validate(enclosingInfo);
+return true;
+}
+return false;
+}
+/**
+* Returns an array containing {@code Class} objects representing all
+* the public classes and interfaces that are members of the class
+* represented by this {@code Class} object.  This includes public
+* class and interface members inherited from superclasses and public class
+* and interface members declared by the class.  This method returns an
+* array of length 0 if this {@code Class} object has no public member
+* classes or interfaces.  This method also returns an array of length 0 if
+* this {@code Class} object represents a primitive type, an array
+* class, or void.
+*
+* @return the array of {@code Class} objects representing the public
+*         members of this class
+* @throws SecurityException
+*         If a security manager, <i>s</i>, is present and
+*         the caller's class loader is not the same as or an
+*         ancestor of the class loader for the current class and
+*         invocation of {@link SecurityManager#checkPackageAccess
+*         s.checkPackageAccess()} denies access to the package
+*         of this class.
+*
+* @since 1.1
+*/
+@CallerSensitive
+public Class<?>[] getClasses() {
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.PUBLIC, Reflection.getCallerClass(), false);
+}
+// Privileged so this implementation can look at DECLARED classes,
+// something the caller might not have privilege to do.  The code here
+// is allowed to look at DECLARED classes because (1) it does not hand
+// out anything other than public members and (2) public member access
+// has already been ok'd by the SecurityManager.
+return java.security.AccessController.doPrivileged(
+new java.security.PrivilegedAction<>() {
+public Class<?>[] run() {
+List<Class<?>> list = new ArrayList<>();
+Class<?> currentClass = Class.this;
+while (currentClass != null) {
+for (Class<?> m : currentClass.getDeclaredClasses()) {
+if (Modifier.isPublic(m.getModifiers())) {
+list.add(m);
+}
+}
+currentClass = currentClass.getSuperclass();
+}
+return list.toArray(new Class<?>[0]);
+}
+});
+}
+/**
+* Returns an array containing {@code Field} objects reflecting all
+* the accessible public fields of the class or interface represented by
+* this {@code Class} object.
+*
+* <p> If this {@code Class} object represents a class or interface with
+* no accessible public fields, then this method returns an array of length
+* 0.
+*
+* <p> If this {@code Class} object represents a class, then this method
+* returns the public fields of the class and of all its superclasses and
+* superinterfaces.
+*
+* <p> If this {@code Class} object represents an interface, then this
+* method returns the fields of the interface and of all its
+* superinterfaces.
+*
+* <p> If this {@code Class} object represents an array type, a primitive
+* type, or void, then this method returns an array of length 0.
+*
+* <p> The elements in the returned array are not sorted and are not in any
+* particular order.
+*
+* @return the array of {@code Field} objects representing the
+*         public fields
+* @throws SecurityException
+*         If a security manager, <i>s</i>, is present and
+*         the caller's class loader is not the same as or an
+*         ancestor of the class loader for the current class and
+*         invocation of {@link SecurityManager#checkPackageAccess
+*         s.checkPackageAccess()} denies access to the package
+*         of this class.
+*
+* @since 1.1
+* @jls 8.2 Class Members
+* @jls 8.3 Field Declarations
+*/
+@CallerSensitive
+public Field[] getFields() throws SecurityException {
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.PUBLIC, Reflection.getCallerClass(), true);
+}
+return copyFields(privateGetPublicFields(null));
+}
+/**
+* Returns an array containing {@code Method} objects reflecting all the
+* public methods of the class or interface represented by this {@code
+* Class} object, including those declared by the class or interface and
+* those inherited from superclasses and superinterfaces.
+*
+* <p> If this {@code Class} object represents an array type, then the
+* returned array has a {@code Method} object for each of the public
+* methods inherited by the array type from {@code Object}. It does not
+* contain a {@code Method} object for {@code clone()}.
+*
+* <p> If this {@code Class} object represents an interface then the
+* returned array does not contain any implicitly declared methods from
+* {@code Object}. Therefore, if no methods are explicitly declared in
+* this interface or any of its superinterfaces then the returned array
+* has length 0. (Note that a {@code Class} object which represents a class
+* always has public methods, inherited from {@code Object}.)
+*
+* <p> The returned array never contains methods with names "{@code <init>}"
+* or "{@code <clinit>}".
+*
+* <p> The elements in the returned array are not sorted and are not in any
+* particular order.
+*
+* <p> Generally, the result is computed as with the following 4 step algorithm.
+* Let C be the class or interface represented by this {@code Class} object:
+* <ol>
+* <li> A union of methods is composed of:
+*   <ol type="a">
+*   <li> C's declared public instance and static methods as returned by
+*        {@link #getDeclaredMethods()} and filtered to include only public
+*        methods.</li>
+*   <li> If C is a class other than {@code Object}, then include the result
+*        of invoking this algorithm recursively on the superclass of C.</li>
+*   <li> Include the results of invoking this algorithm recursively on all
+*        direct superinterfaces of C, but include only instance methods.</li>
+*   </ol></li>
+* <li> Union from step 1 is partitioned into subsets of methods with same
+*      signature (name, parameter types) and return type.</li>
+* <li> Within each such subset only the most specific methods are selected.
+*      Let method M be a method from a set of methods with same signature
+*      and return type. M is most specific if there is no such method
+*      N != M from the same set, such that N is more specific than M.
+*      N is more specific than M if:
+*   <ol type="a">
+*   <li> N is declared by a class and M is declared by an interface; or</li>
+*   <li> N and M are both declared by classes or both by interfaces and
+*        N's declaring type is the same as or a subtype of M's declaring type
+*        (clearly, if M's and N's declaring types are the same type, then
+*        M and N are the same method).</li>
+*   </ol></li>
+* <li> The result of this algorithm is the union of all selected methods from
+*      step 3.</li>
+* </ol>
+*
+* @apiNote There may be more than one method with a particular name
+* and parameter types in a class because while the Java language forbids a
+* class to declare multiple methods with the same signature but different
+* return types, the Java virtual machine does not.  This
+* increased flexibility in the virtual machine can be used to
+* implement various language features.  For example, covariant
+* returns can be implemented with {@linkplain
+* java.lang.reflect.Method#isBridge bridge methods}; the bridge
+* method and the overriding method would have the same
+* signature but different return types.
+*
+* @return the array of {@code Method} objects representing the
+*         public methods of this class
+* @throws SecurityException
+*         If a security manager, <i>s</i>, is present and
+*         the caller's class loader is not the same as or an
+*         ancestor of the class loader for the current class and
+*         invocation of {@link SecurityManager#checkPackageAccess
+*         s.checkPackageAccess()} denies access to the package
+*         of this class.
+*
+* @jls 8.2 Class Members
+* @jls 8.4 Method Declarations
+* @since 1.1
+*/
+@CallerSensitive
+public Method[] getMethods() throws SecurityException {
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.PUBLIC, Reflection.getCallerClass(), true);
+}
+return copyMethods(privateGetPublicMethods());
+}
+/**
+* Returns an array containing {@code Constructor} objects reflecting
+* all the public constructors of the class represented by this
+* {@code Class} object.  An array of length 0 is returned if the
+* class has no public constructors, or if the class is an array class, or
+* if the class reflects a primitive type or void.
+*
+* Note that while this method returns an array of {@code
+* Constructor<T>} objects (that is an array of constructors from
+* this class), the return type of this method is {@code
+* Constructor<?>[]} and <em>not</em> {@code Constructor<T>[]} as
+* might be expected.  This less informative return type is
+* necessary since after being returned from this method, the
+* array could be modified to hold {@code Constructor} objects for
+* different classes, which would violate the type guarantees of
+* {@code Constructor<T>[]}.
+*
+* @return the array of {@code Constructor} objects representing the
+*         public constructors of this class
+* @throws SecurityException
+*         If a security manager, <i>s</i>, is present and
+*         the caller's class loader is not the same as or an
+*         ancestor of the class loader for the current class and
+*         invocation of {@link SecurityManager#checkPackageAccess
+*         s.checkPackageAccess()} denies access to the package
+*         of this class.
+*
+* @since 1.1
+*/
+@CallerSensitive
+public Constructor<?>[] getConstructors() throws SecurityException {
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.PUBLIC, Reflection.getCallerClass(), true);
+}
+return copyConstructors(privateGetDeclaredConstructors(true));
+}
+/**
+* Returns a {@code Field} object that reflects the specified public member
+* field of the class or interface represented by this {@code Class}
+* object. The {@code name} parameter is a {@code String} specifying the
+* simple name of the desired field.
+*
+* <p> The field to be reflected is determined by the algorithm that
+* follows.  Let C be the class or interface represented by this object:
+*
+* <OL>
+* <LI> If C declares a public field with the name specified, that is the
+*      field to be reflected.</LI>
+* <LI> If no field was found in step 1 above, this algorithm is applied
+*      recursively to each direct superinterface of C. The direct
+*      superinterfaces are searched in the order they were declared.</LI>
+* <LI> If no field was found in steps 1 and 2 above, and C has a
+*      superclass S, then this algorithm is invoked recursively upon S.
+*      If C has no superclass, then a {@code NoSuchFieldException}
+*      is thrown.</LI>
+* </OL>
+*
+* <p> If this {@code Class} object represents an array type, then this
+* method does not find the {@code length} field of the array type.
+*
+* @param name the field name
+* @return the {@code Field} object of this class specified by
+*         {@code name}
+* @throws NoSuchFieldException if a field with the specified name is
+*         not found.
+* @throws NullPointerException if {@code name} is {@code null}
+* @throws SecurityException
+*         If a security manager, <i>s</i>, is present and
+*         the caller's class loader is not the same as or an
+*         ancestor of the class loader for the current class and
+*         invocation of {@link SecurityManager#checkPackageAccess
+*         s.checkPackageAccess()} denies access to the package
+*         of this class.
+*
+* @since 1.1
+* @jls 8.2 Class Members
+* @jls 8.3 Field Declarations
+*/
+@CallerSensitive
+public Field getField(String name)
+throws NoSuchFieldException, SecurityException {
+Objects.requireNonNull(name);
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.PUBLIC, Reflection.getCallerClass(), true);
+}
+Field field = getField0(name);
+if (field == null) {
+throw new NoSuchFieldException(name);
+}
+return getReflectionFactory().copyField(field);
+}
+/**
+* Returns a {@code Method} object that reflects the specified public
+* member method of the class or interface represented by this
+* {@code Class} object. The {@code name} parameter is a
+* {@code String} specifying the simple name of the desired method. The
+* {@code parameterTypes} parameter is an array of {@code Class}
+* objects that identify the method's formal parameter types, in declared
+* order. If {@code parameterTypes} is {@code null}, it is
+* treated as if it were an empty array.
+*
+* <p> If this {@code Class} object represents an array type, then this
+* method finds any public method inherited by the array type from
+* {@code Object} except method {@code clone()}.
+*
+* <p> If this {@code Class} object represents an interface then this
+* method does not find any implicitly declared method from
+* {@code Object}. Therefore, if no methods are explicitly declared in
+* this interface or any of its superinterfaces, then this method does not
+* find any method.
+*
+* <p> This method does not find any method with name "{@code <init>}" or
+* "{@code <clinit>}".
+*
+* <p> Generally, the method to be reflected is determined by the 4 step
+* algorithm that follows.
+* Let C be the class or interface represented by this {@code Class} object:
+* <ol>
+* <li> A union of methods is composed of:
+*   <ol type="a">
+*   <li> C's declared public instance and static methods as returned by
+*        {@link #getDeclaredMethods()} and filtered to include only public
+*        methods that match given {@code name} and {@code parameterTypes}</li>
+*   <li> If C is a class other than {@code Object}, then include the result
+*        of invoking this algorithm recursively on the superclass of C.</li>
+*   <li> Include the results of invoking this algorithm recursively on all
+*        direct superinterfaces of C, but include only instance methods.</li>
+*   </ol></li>
+* <li> This union is partitioned into subsets of methods with same
+*      return type (the selection of methods from step 1 also guarantees that
+*      they have the same method name and parameter types).</li>
+* <li> Within each such subset only the most specific methods are selected.
+*      Let method M be a method from a set of methods with same VM
+*      signature (return type, name, parameter types).
+*      M is most specific if there is no such method N != M from the same
+*      set, such that N is more specific than M. N is more specific than M
+*      if:
+*   <ol type="a">
+*   <li> N is declared by a class and M is declared by an interface; or</li>
+*   <li> N and M are both declared by classes or both by interfaces and
+*        N's declaring type is the same as or a subtype of M's declaring type
+*        (clearly, if M's and N's declaring types are the same type, then
+*        M and N are the same method).</li>
+*   </ol></li>
+* <li> The result of this algorithm is chosen arbitrarily from the methods
+*      with most specific return type among all selected methods from step 3.
+*      Let R be a return type of a method M from the set of all selected methods
+*      from step 3. M is a method with most specific return type if there is
+*      no such method N != M from the same set, having return type S != R,
+*      such that S is a subtype of R as determined by
+*      R.class.{@link #isAssignableFrom}(S.class).
+* </ol>
+*
+* @apiNote There may be more than one method with matching name and
+* parameter types in a class because while the Java language forbids a
+* class to declare multiple methods with the same signature but different
+* return types, the Java virtual machine does not.  This
+* increased flexibility in the virtual machine can be used to
+* implement various language features.  For example, covariant
+* returns can be implemented with {@linkplain
+* java.lang.reflect.Method#isBridge bridge methods}; the bridge
+* method and the overriding method would have the same
+* signature but different return types. This method would return the
+* overriding method as it would have a more specific return type.
+*
+* @param name the name of the method
+* @param parameterTypes the list of parameters
+* @return the {@code Method} object that matches the specified
+*         {@code name} and {@code parameterTypes}
+* @throws NoSuchMethodException if a matching method is not found
+*         or if the name is "&lt;init&gt;"or "&lt;clinit&gt;".
+* @throws NullPointerException if {@code name} is {@code null}
+* @throws SecurityException
+*         If a security manager, <i>s</i>, is present and
+*         the caller's class loader is not the same as or an
+*         ancestor of the class loader for the current class and
+*         invocation of {@link SecurityManager#checkPackageAccess
+*         s.checkPackageAccess()} denies access to the package
+*         of this class.
+*
+* @jls 8.2 Class Members
+* @jls 8.4 Method Declarations
+* @since 1.1
+*/
+@CallerSensitive
+public Method getMethod(String name, Class<?>... parameterTypes)
+throws NoSuchMethodException, SecurityException {
+Objects.requireNonNull(name);
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.PUBLIC, Reflection.getCallerClass(), true);
+}
+Method method = getMethod0(name, parameterTypes);
+if (method == null) {
+throw new NoSuchMethodException(methodToString(name, parameterTypes));
+}
+return getReflectionFactory().copyMethod(method);
+}
+/**
+* Returns a {@code Constructor} object that reflects the specified
+* public constructor of the class represented by this {@code Class}
+* object. The {@code parameterTypes} parameter is an array of
+* {@code Class} objects that identify the constructor's formal
+* parameter types, in declared order.
+*
+* If this {@code Class} object represents an inner class
+* declared in a non-static context, the formal parameter types
+* include the explicit enclosing instance as the first parameter.
+*
+* <p> The constructor to reflect is the public constructor of the class
+* represented by this {@code Class} object whose formal parameter
+* types match those specified by {@code parameterTypes}.
+*
+* @param parameterTypes the parameter array
+* @return the {@code Constructor} object of the public constructor that
+*         matches the specified {@code parameterTypes}
+* @throws NoSuchMethodException if a matching method is not found.
+* @throws SecurityException
+*         If a security manager, <i>s</i>, is present and
+*         the caller's class loader is not the same as or an
+*         ancestor of the class loader for the current class and
+*         invocation of {@link SecurityManager#checkPackageAccess
+*         s.checkPackageAccess()} denies access to the package
+*         of this class.
+*
+* @since 1.1
+*/
+@CallerSensitive
+public Constructor<T> getConstructor(Class<?>... parameterTypes)
+throws NoSuchMethodException, SecurityException
+{
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.PUBLIC, Reflection.getCallerClass(), true);
+}
+return getReflectionFactory().copyConstructor(
+getConstructor0(parameterTypes, Member.PUBLIC));
+}
+/**
+* Returns an array of {@code Class} objects reflecting all the
+* classes and interfaces declared as members of the class represented by
+* this {@code Class} object. This includes public, protected, default
+* (package) access, and private classes and interfaces declared by the
+* class, but excludes inherited classes and interfaces.  This method
+* returns an array of length 0 if the class declares no classes or
+* interfaces as members, or if this {@code Class} object represents a
+* primitive type, an array class, or void.
+*
+* @return the array of {@code Class} objects representing all the
+*         declared members of this class
+* @throws SecurityException
+*         If a security manager, <i>s</i>, is present and any of the
+*         following conditions is met:
+*
+*         <ul>
+*
+*         <li> the caller's class loader is not the same as the
+*         class loader of this class and invocation of
+*         {@link SecurityManager#checkPermission
+*         s.checkPermission} method with
+*         {@code RuntimePermission("accessDeclaredMembers")}
+*         denies access to the declared classes within this class
+*
+*         <li> the caller's class loader is not the same as or an
+*         ancestor of the class loader for the current class and
+*         invocation of {@link SecurityManager#checkPackageAccess
+*         s.checkPackageAccess()} denies access to the package
+*         of this class
+*
+*         </ul>
+*
+* @since 1.1
+*/
+@CallerSensitive
+public Class<?>[] getDeclaredClasses() throws SecurityException {
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.DECLARED, Reflection.getCallerClass(), false);
+}
+return getDeclaredClasses0();
+}
+/**
+* Returns an array of {@code Field} objects reflecting all the fields
+* declared by the class or interface represented by this
+* {@code Class} object. This includes public, protected, default
+* (package) access, and private fields, but excludes inherited fields.
+*
+* <p> If this {@code Class} object represents a class or interface with no
+* declared fields, then this method returns an array of length 0.
+*
+* <p> If this {@code Class} object represents an array type, a primitive
+* type, or void, then this method returns an array of length 0.
+*
+* <p> The elements in the returned array are not sorted and are not in any
+* particular order.
+*
+* @return  the array of {@code Field} objects representing all the
+*          declared fields of this class
+* @throws  SecurityException
+*          If a security manager, <i>s</i>, is present and any of the
+*          following conditions is met:
+*
+*          <ul>
+*
+*          <li> the caller's class loader is not the same as the
+*          class loader of this class and invocation of
+*          {@link SecurityManager#checkPermission
+*          s.checkPermission} method with
+*          {@code RuntimePermission("accessDeclaredMembers")}
+*          denies access to the declared fields within this class
+*
+*          <li> the caller's class loader is not the same as or an
+*          ancestor of the class loader for the current class and
+*          invocation of {@link SecurityManager#checkPackageAccess
+*          s.checkPackageAccess()} denies access to the package
+*          of this class
+*
+*          </ul>
+*
+* @since 1.1
+* @jls 8.2 Class Members
+* @jls 8.3 Field Declarations
+*/
+@CallerSensitive
+public Field[] getDeclaredFields() throws SecurityException {
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.DECLARED, Reflection.getCallerClass(), true);
+}
+return copyFields(privateGetDeclaredFields(false));
+}
+/**
+* Returns an array containing {@code Method} objects reflecting all the
+* declared methods of the class or interface represented by this {@code
+* Class} object, including public, protected, default (package)
+* access, and private methods, but excluding inherited methods.
+*
+* <p> If this {@code Class} object represents a type that has multiple
+* declared methods with the same name and parameter types, but different
+* return types, then the returned array has a {@code Method} object for
+* each such method.
+*
+* <p> If this {@code Class} object represents a type that has a class
+* initialization method {@code <clinit>}, then the returned array does
+* <em>not</em> have a corresponding {@code Method} object.
+*
+* <p> If this {@code Class} object represents a class or interface with no
+* declared methods, then the returned array has length 0.
+*
+* <p> If this {@code Class} object represents an array type, a primitive
+* type, or void, then the returned array has length 0.
+*
+* <p> The elements in the returned array are not sorted and are not in any
+* particular order.
+*
+* @return  the array of {@code Method} objects representing all the
+*          declared methods of this class
+* @throws  SecurityException
+*          If a security manager, <i>s</i>, is present and any of the
+*          following conditions is met:
+*
+*          <ul>
+*
+*          <li> the caller's class loader is not the same as the
+*          class loader of this class and invocation of
+*          {@link SecurityManager#checkPermission
+*          s.checkPermission} method with
+*          {@code RuntimePermission("accessDeclaredMembers")}
+*          denies access to the declared methods within this class
+*
+*          <li> the caller's class loader is not the same as or an
+*          ancestor of the class loader for the current class and
+*          invocation of {@link SecurityManager#checkPackageAccess
+*          s.checkPackageAccess()} denies access to the package
+*          of this class
+*
+*          </ul>
+*
+* @jls 8.2 Class Members
+* @jls 8.4 Method Declarations
+* @since 1.1
+*/
+@CallerSensitive
+public Method[] getDeclaredMethods() throws SecurityException {
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.DECLARED, Reflection.getCallerClass(), true);
+}
+return copyMethods(privateGetDeclaredMethods(false));
+}
+/**
+* Returns an array of {@code Constructor} objects reflecting all the
+* constructors declared by the class represented by this
+* {@code Class} object. These are public, protected, default
+* (package) access, and private constructors.  The elements in the array
+* returned are not sorted and are not in any particular order.  If the
+* class has a default constructor, it is included in the returned array.
+* This method returns an array of length 0 if this {@code Class}
+* object represents an interface, a primitive type, an array class, or
+* void.
+*
+* <p> See <em>The Java Language Specification</em>, section 8.2.
+*
+* @return  the array of {@code Constructor} objects representing all the
+*          declared constructors of this class
+* @throws  SecurityException
+*          If a security manager, <i>s</i>, is present and any of the
+*          following conditions is met:
+*
+*          <ul>
+*
+*          <li> the caller's class loader is not the same as the
+*          class loader of this class and invocation of
+*          {@link SecurityManager#checkPermission
+*          s.checkPermission} method with
+*          {@code RuntimePermission("accessDeclaredMembers")}
+*          denies access to the declared constructors within this class
+*
+*          <li> the caller's class loader is not the same as or an
+*          ancestor of the class loader for the current class and
+*          invocation of {@link SecurityManager#checkPackageAccess
+*          s.checkPackageAccess()} denies access to the package
+*          of this class
+*
+*          </ul>
+*
+* @since 1.1
+*/
+@CallerSensitive
+public Constructor<?>[] getDeclaredConstructors() throws SecurityException {
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.DECLARED, Reflection.getCallerClass(), true);
+}
+return copyConstructors(privateGetDeclaredConstructors(false));
+}
+/**
+* Returns a {@code Field} object that reflects the specified declared
+* field of the class or interface represented by this {@code Class}
+* object. The {@code name} parameter is a {@code String} that specifies
+* the simple name of the desired field.
+*
+* <p> If this {@code Class} object represents an array type, then this
+* method does not find the {@code length} field of the array type.
+*
+* @param name the name of the field
+* @return  the {@code Field} object for the specified field in this
+*          class
+* @throws  NoSuchFieldException if a field with the specified name is
+*          not found.
+* @throws  NullPointerException if {@code name} is {@code null}
+* @throws  SecurityException
+*          If a security manager, <i>s</i>, is present and any of the
+*          following conditions is met:
+*
+*          <ul>
+*
+*          <li> the caller's class loader is not the same as the
+*          class loader of this class and invocation of
+*          {@link SecurityManager#checkPermission
+*          s.checkPermission} method with
+*          {@code RuntimePermission("accessDeclaredMembers")}
+*          denies access to the declared field
+*
+*          <li> the caller's class loader is not the same as or an
+*          ancestor of the class loader for the current class and
+*          invocation of {@link SecurityManager#checkPackageAccess
+*          s.checkPackageAccess()} denies access to the package
+*          of this class
+*
+*          </ul>
+*
+* @since 1.1
+* @jls 8.2 Class Members
+* @jls 8.3 Field Declarations
+*/
+@CallerSensitive
+public Field getDeclaredField(String name)
+throws NoSuchFieldException, SecurityException {
+Objects.requireNonNull(name);
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.DECLARED, Reflection.getCallerClass(), true);
+}
+Field field = searchFields(privateGetDeclaredFields(false), name);
+if (field == null) {
+throw new NoSuchFieldException(name);
+}
+return getReflectionFactory().copyField(field);
+}
+/**
+* Returns a {@code Method} object that reflects the specified
+* declared method of the class or interface represented by this
+* {@code Class} object. The {@code name} parameter is a
+* {@code String} that specifies the simple name of the desired
+* method, and the {@code parameterTypes} parameter is an array of
+* {@code Class} objects that identify the method's formal parameter
+* types, in declared order.  If more than one method with the same
+* parameter types is declared in a class, and one of these methods has a
+* return type that is more specific than any of the others, that method is
+* returned; otherwise one of the methods is chosen arbitrarily.  If the
+* name is "&lt;init&gt;"or "&lt;clinit&gt;" a {@code NoSuchMethodException}
+* is raised.
+*
+* <p> If this {@code Class} object represents an array type, then this
+* method does not find the {@code clone()} method.
+*
+* @param name the name of the method
+* @param parameterTypes the parameter array
+* @return  the {@code Method} object for the method of this class
+*          matching the specified name and parameters
+* @throws  NoSuchMethodException if a matching method is not found.
+* @throws  NullPointerException if {@code name} is {@code null}
+* @throws  SecurityException
+*          If a security manager, <i>s</i>, is present and any of the
+*          following conditions is met:
+*
+*          <ul>
+*
+*          <li> the caller's class loader is not the same as the
+*          class loader of this class and invocation of
+*          {@link SecurityManager#checkPermission
+*          s.checkPermission} method with
+*          {@code RuntimePermission("accessDeclaredMembers")}
+*          denies access to the declared method
+*
+*          <li> the caller's class loader is not the same as or an
+*          ancestor of the class loader for the current class and
+*          invocation of {@link SecurityManager#checkPackageAccess
+*          s.checkPackageAccess()} denies access to the package
+*          of this class
+*
+*          </ul>
+*
+* @jls 8.2 Class Members
+* @jls 8.4 Method Declarations
+* @since 1.1
+*/
+@CallerSensitive
+public Method getDeclaredMethod(String name, Class<?>... parameterTypes)
+throws NoSuchMethodException, SecurityException {
+Objects.requireNonNull(name);
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.DECLARED, Reflection.getCallerClass(), true);
+}
+Method method = searchMethods(privateGetDeclaredMethods(false), name, parameterTypes);
+if (method == null) {
+throw new NoSuchMethodException(methodToString(name, parameterTypes));
+}
+return getReflectionFactory().copyMethod(method);
+}
+/**
+* Returns the list of {@code Method} objects for the declared public
+* methods of this class or interface that have the specified method name
+* and parameter types.
+*
+* @param name the name of the method
+* @param parameterTypes the parameter array
+* @return the list of {@code Method} objects for the public methods of
+*         this class matching the specified name and parameters
+*/
+List<Method> getDeclaredPublicMethods(String name, Class<?>... parameterTypes) {
+Method[] methods = privateGetDeclaredMethods(/* publicOnly */ true);
+ReflectionFactory factory = getReflectionFactory();
+List<Method> result = new ArrayList<>();
+for (Method method : methods) {
+if (method.getName().equals(name)
+&& Arrays.equals(
+factory.getExecutableSharedParameterTypes(method),
+parameterTypes)) {
+result.add(factory.copyMethod(method));
+}
+}
+return result;
+}
+/**
+* Returns a {@code Constructor} object that reflects the specified
+* constructor of the class or interface represented by this
+* {@code Class} object.  The {@code parameterTypes} parameter is
+* an array of {@code Class} objects that identify the constructor's
+* formal parameter types, in declared order.
+*
+* If this {@code Class} object represents an inner class
+* declared in a non-static context, the formal parameter types
+* include the explicit enclosing instance as the first parameter.
+*
+* @param parameterTypes the parameter array
+* @return  The {@code Constructor} object for the constructor with the
+*          specified parameter list
+* @throws  NoSuchMethodException if a matching method is not found.
+* @throws  SecurityException
+*          If a security manager, <i>s</i>, is present and any of the
+*          following conditions is met:
+*
+*          <ul>
+*
+*          <li> the caller's class loader is not the same as the
+*          class loader of this class and invocation of
+*          {@link SecurityManager#checkPermission
+*          s.checkPermission} method with
+*          {@code RuntimePermission("accessDeclaredMembers")}
+*          denies access to the declared constructor
+*
+*          <li> the caller's class loader is not the same as or an
+*          ancestor of the class loader for the current class and
+*          invocation of {@link SecurityManager#checkPackageAccess
+*          s.checkPackageAccess()} denies access to the package
+*          of this class
+*
+*          </ul>
+*
+* @since 1.1
+*/
+@CallerSensitive
+public Constructor<T> getDeclaredConstructor(Class<?>... parameterTypes)
+throws NoSuchMethodException, SecurityException
+{
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+checkMemberAccess(sm, Member.DECLARED, Reflection.getCallerClass(), true);
+}
+return getReflectionFactory().copyConstructor(
+getConstructor0(parameterTypes, Member.DECLARED));
+}
+/**
+* Finds a resource with a given name.
+*
+* <p> If this class is in a named {@link Module Module} then this method
+* will attempt to find the resource in the module. This is done by
+* delegating to the module's class loader {@link
+* ClassLoader#findResource(String,String) findResource(String,String)}
+* method, invoking it with the module name and the absolute name of the
+* resource. Resources in named modules are subject to the rules for
+* encapsulation specified in the {@code Module} {@link
+* Module#getResourceAsStream getResourceAsStream} method and so this
+* method returns {@code null} when the resource is a
+* non-"{@code .class}" resource in a package that is not open to the
+* caller's module.
+*
+* <p> Otherwise, if this class is not in a named module then the rules for
+* searching resources associated with a given class are implemented by the
+* defining {@linkplain ClassLoader class loader} of the class.  This method
+* delegates to this object's class loader.  If this object was loaded by
+* the bootstrap class loader, the method delegates to {@link
+* ClassLoader#getSystemResourceAsStream}.
+*
+* <p> Before delegation, an absolute resource name is constructed from the
+* given resource name using this algorithm:
+*
+* <ul>
+*
+* <li> If the {@code name} begins with a {@code '/'}
+* (<code>'&#92;u002f'</code>), then the absolute name of the resource is the
+* portion of the {@code name} following the {@code '/'}.
+*
+* <li> Otherwise, the absolute name is of the following form:
+*
+* <blockquote>
+*   {@code modified_package_name/name}
+* </blockquote>
+*
+* <p> Where the {@code modified_package_name} is the package name of this
+* object with {@code '/'} substituted for {@code '.'}
+* (<code>'&#92;u002e'</code>).
+*
+* </ul>
+*
+* @param  name name of the desired resource
+* @return  A {@link java.io.InputStream} object; {@code null} if no
+*          resource with this name is found, the resource is in a package
+*          that is not {@link Module#isOpen(String, Module) open} to at
+*          least the caller module, or access to the resource is denied
+*          by the security manager.
+* @throws  NullPointerException If {@code name} is {@code null}
+*
+* @see Module#getResourceAsStream(String)
+* @since  1.1
+* @revised 9
+* @spec JPMS
+*/
+@CallerSensitive
+public InputStream getResourceAsStream(String name) {
+name = resolveName(name);
+Module thisModule = getModule();
+if (thisModule.isNamed()) {
+// check if resource can be located by caller
+if (Resources.canEncapsulate(name)
+&& !isOpenToCaller(name, Reflection.getCallerClass())) {
+return null;
+}
+// resource not encapsulated or in package open to caller
+String mn = thisModule.getName();
+ClassLoader cl = getClassLoader0();
+try {
+// special-case built-in class loaders to avoid the
+// need for a URL connection
+if (cl == null) {
+return BootLoader.findResourceAsStream(mn, name);
+} else if (cl instanceof BuiltinClassLoader) {
+return ((BuiltinClassLoader) cl).findResourceAsStream(mn, name);
+} else {
+URL url = cl.findResource(mn, name);
+return (url != null) ? url.openStream() : null;
+}
+} catch (IOException | SecurityException e) {
+return null;
+}
+}
+// unnamed module
+ClassLoader cl = getClassLoader0();
+if (cl == null) {
+return ClassLoader.getSystemResourceAsStream(name);
+} else {
+return cl.getResourceAsStream(name);
+}
+}
+/**
+* Finds a resource with a given name.
+*
+* <p> If this class is in a named {@link Module Module} then this method
+* will attempt to find the resource in the module. This is done by
+* delegating to the module's class loader {@link
+* ClassLoader#findResource(String,String) findResource(String,String)}
+* method, invoking it with the module name and the absolute name of the
+* resource. Resources in named modules are subject to the rules for
+* encapsulation specified in the {@code Module} {@link
+* Module#getResourceAsStream getResourceAsStream} method and so this
+* method returns {@code null} when the resource is a
+* non-"{@code .class}" resource in a package that is not open to the
+* caller's module.
+*
+* <p> Otherwise, if this class is not in a named module then the rules for
+* searching resources associated with a given class are implemented by the
+* defining {@linkplain ClassLoader class loader} of the class.  This method
+* delegates to this object's class loader. If this object was loaded by
+* the bootstrap class loader, the method delegates to {@link
+* ClassLoader#getSystemResource}.
+*
+* <p> Before delegation, an absolute resource name is constructed from the
+* given resource name using this algorithm:
+*
+* <ul>
+*
+* <li> If the {@code name} begins with a {@code '/'}
+* (<code>'&#92;u002f'</code>), then the absolute name of the resource is the
+* portion of the {@code name} following the {@code '/'}.
+*
+* <li> Otherwise, the absolute name is of the following form:
+*
+* <blockquote>
+*   {@code modified_package_name/name}
+* </blockquote>
+*
+* <p> Where the {@code modified_package_name} is the package name of this
+* object with {@code '/'} substituted for {@code '.'}
+* (<code>'&#92;u002e'</code>).
+*
+* </ul>
+*
+* @param  name name of the desired resource
+* @return A {@link java.net.URL} object; {@code null} if no resource with
+*         this name is found, the resource cannot be located by a URL, the
+*         resource is in a package that is not
+*         {@link Module#isOpen(String, Module) open} to at least the caller
+*         module, or access to the resource is denied by the security
+*         manager.
+* @throws NullPointerException If {@code name} is {@code null}
+* @since  1.1
+* @revised 9
+* @spec JPMS
+*/
+@CallerSensitive
+public URL getResource(String name) {
+name = resolveName(name);
+Module thisModule = getModule();
+if (thisModule.isNamed()) {
+// check if resource can be located by caller
+if (Resources.canEncapsulate(name)
+&& !isOpenToCaller(name, Reflection.getCallerClass())) {
+return null;
+}
+// resource not encapsulated or in package open to caller
+String mn = thisModule.getName();
+ClassLoader cl = getClassLoader0();
+try {
+if (cl == null) {
+return BootLoader.findResource(mn, name);
+} else {
+return cl.findResource(mn, name);
+}
+} catch (IOException ioe) {
+return null;
+}
+}
+// unnamed module
+ClassLoader cl = getClassLoader0();
+if (cl == null) {
+return ClassLoader.getSystemResource(name);
+} else {
+return cl.getResource(name);
+}
+}
+/**
+* Returns true if a resource with the given name can be located by the
+* given caller. All resources in a module can be located by code in
+* the module. For other callers, then the package needs to be open to
+* the caller.
+*/
+private boolean isOpenToCaller(String name, Class<?> caller) {
+// assert getModule().isNamed();
+Module thisModule = getModule();
+Module callerModule = (caller != null) ? caller.getModule() : null;
+if (callerModule != thisModule) {
+String pn = Resources.toPackageName(name);
+if (thisModule.getDescriptor().packages().contains(pn)) {
+if (callerModule == null && !thisModule.isOpen(pn)) {
+// no caller, package not open
+return false;
+}
+if (!thisModule.isOpen(pn, callerModule)) {
+// package not open to caller
+return false;
+}
+}
+}
+return true;
+}
+/** protection domain returned when the internal domain is null */
+private static java.security.ProtectionDomain allPermDomain;
+/**
+* Returns the {@code ProtectionDomain} of this class.  If there is a
+* security manager installed, this method first calls the security
+* manager's {@code checkPermission} method with a
+* {@code RuntimePermission("getProtectionDomain")} permission to
+* ensure it's ok to get the
+* {@code ProtectionDomain}.
+*
+* @return the ProtectionDomain of this class
+*
+* @throws SecurityException
+*        if a security manager exists and its
+*        {@code checkPermission} method doesn't allow
+*        getting the ProtectionDomain.
+*
+* @see java.security.ProtectionDomain
+* @see SecurityManager#checkPermission
+* @see java.lang.RuntimePermission
+* @since 1.2
+*/
+public java.security.ProtectionDomain getProtectionDomain() {
+SecurityManager sm = System.getSecurityManager();
+if (sm != null) {
+sm.checkPermission(SecurityConstants.GET_PD_PERMISSION);
+}
+java.security.ProtectionDomain pd = getProtectionDomain0();
+if (pd == null) {
+if (allPermDomain == null) {
+java.security.Permissions perms =
+new java.security.Permissions();
+perms.add(SecurityConstants.ALL_PERMISSION);
+allPermDomain =
+new java.security.ProtectionDomain(null, perms);
+}
+pd = allPermDomain;
+}
+return pd;
+}
+/**
+* Returns the ProtectionDomain of this class.
+*/
+private native java.security.ProtectionDomain getProtectionDomain0();
+/*
+* Return the Virtual Machine's Class object for the named
+* primitive type.
+*/
+static native Class<?> getPrimitiveClass(String name);
+/*
+* Check if client is allowed to access members.  If access is denied,
+* throw a SecurityException.
+*
+* This method also enforces package access.
+*
+* <p> Default policy: allow all clients access with normal Java access
+* control.
+*
+* <p> NOTE: should only be called if a SecurityManager is installed
+*/
+private void checkMemberAccess(SecurityManager sm, int which,
+Class<?> caller, boolean checkProxyInterfaces) {
+/* Default policy allows access to all {@link Member#PUBLIC} members,
+* as well as access to classes that have the same class loader as the caller.
+* In all other cases, it requires RuntimePermission("accessDeclaredMembers")
+* permission.
+*/
+final ClassLoader ccl = ClassLoader.getClassLoader(caller);
+if (which != Member.PUBLIC) {
+final ClassLoader cl = getClassLoader0();
+if (ccl != cl) {
+sm.checkPermission(SecurityConstants.CHECK_MEMBER_ACCESS_PERMISSION);
+}
+}
+this.checkPackageAccess(sm, ccl, checkProxyInterfaces);
+}
+/*
+* Checks if a client loaded in ClassLoader ccl is allowed to access this
+* class under the current package access policy. If access is denied,
+* throw a SecurityException.
+*
+* NOTE: this method should only be called if a SecurityManager is active
+*/
+private void checkPackageAccess(SecurityManager sm, final ClassLoader ccl,
+boolean checkProxyInterfaces) {
+final ClassLoader cl = getClassLoader0();
+if (ReflectUtil.needsPackageAccessCheck(ccl, cl)) {
+String pkg = this.getPackageName();
+if (pkg != null && !pkg.isEmpty()) {
+// skip the package access check on a proxy class in default proxy package
+if (!Proxy.isProxyClass(this) || ReflectUtil.isNonPublicProxyClass(this)) {
+sm.checkPackageAccess(pkg);
+}
+}
+}
+// check package access on the proxy interfaces
+if (checkProxyInterfaces && Proxy.isProxyClass(this)) {
+ReflectUtil.checkProxyPackageAccess(ccl, this.getInterfaces());
+}
+}
+/**
+* Add a package name prefix if the name is not absolute Remove leading "/"
+* if name is absolute
+*/
+private String resolveName(String name) {
+if (!name.startsWith("/")) {
+Class<?> c = this;
+while (c.isArray()) {
+c = c.getComponentType();
+}
+String baseName = c.getPackageName();
+if (baseName != null && !baseName.isEmpty()) {
+name = baseName.replace('.', '/') + "/" + name;
+}
+} else {
+name = name.substring(1);
+}
+return name;
+}
+/**
+* Atomic operations support.
+*/
+private static class Atomic {
+// initialize Unsafe machinery here, since we need to call Class.class instance method
+// and have to avoid calling it in the static initializer of the Class class...
+private static final Unsafe unsafe = Unsafe.getUnsafe();
+// offset of Class.reflectionData instance field
+private static final long reflectionDataOffset
+= unsafe.objectFieldOffset(Class.class, "reflectionData");
+// offset of Class.annotationType instance field
+private static final long annotationTypeOffset
+= unsafe.objectFieldOffset(Class.class, "annotationType");
+// offset of Class.annotationData instance field
+private static final long annotationDataOffset
+= unsafe.objectFieldOffset(Class.class, "annotationData");
+static <T> boolean casReflectionData(Class<?> clazz,
+SoftReference<ReflectionData<T>> oldData,
+SoftReference<ReflectionData<T>> newData) {
+return unsafe.compareAndSetObject(clazz, reflectionDataOffset, oldData, newData);
+}
+static <T> boolean casAnnotationType(Class<?> clazz,
+AnnotationType oldType,
+AnnotationType newType) {
+return unsafe.compareAndSetObject(clazz, annotationTypeOffset, oldType, newType);
+}
+static <T> boolean casAnnotationData(Class<?> clazz,
+AnnotationData oldData,
+AnnotationData newData) {
+return unsafe.compareAndSetObject(clazz, annotationDataOffset, oldData, newData);
+}
+}
+/**
+* Reflection support.
+*/
+// reflection data that might get invalidated when JVM TI RedefineClasses() is called
+private static class ReflectionData<T> {
+volatile Field[] declaredFields;
+volatile Field[] publicFields;
+volatile Method[] declaredMethods;
+volatile Method[] publicMethods;
+volatile Constructor<T>[] declaredConstructors;
+volatile Constructor<T>[] publicConstructors;
+// Intermediate results for getFields and getMethods
+volatile Field[] declaredPublicFields;
+volatile Method[] declaredPublicMethods;
+volatile Class<?>[] interfaces;
+// Value of classRedefinedCount when we created this ReflectionData instance
+final int redefinedCount;
+ReflectionData(int redefinedCount) {
+this.redefinedCount = redefinedCount;
+}
+}
+private transient volatile SoftReference<ReflectionData<T>> reflectionData;
+// Incremented by the VM on each call to JVM TI RedefineClasses()
+// that redefines this class or a superclass.
+private transient volatile int classRedefinedCount;
+// Lazily create and cache ReflectionData
+private ReflectionData<T> reflectionData() {
+SoftReference<ReflectionData<T>> reflectionData = this.reflectionData;
+int classRedefinedCount = this.classRedefinedCount;
+ReflectionData<T> rd;
+if (reflectionData != null &&
+(rd = reflectionData.get()) != null &&
+rd.redefinedCount == classRedefinedCount) {
+return rd;
+}
+// else no SoftReference or cleared SoftReference or stale ReflectionData
+// -> create and replace new instance
+return newReflectionData(reflectionData, classRedefinedCount);
+}
+private ReflectionData<T> newReflectionData(SoftReference<ReflectionData<T>> oldReflectionData,
+int classRedefinedCount) {
+while (true) {
+ReflectionData<T> rd = new ReflectionData<>(classRedefinedCount);
+// try to CAS it...
+if (Atomic.casReflectionData(this, oldReflectionData, new SoftReference<>(rd))) {
+return rd;
+}
+// else retry
+oldReflectionData = this.reflectionData;
+classRedefinedCount = this.classRedefinedCount;
+if (oldReflectionData != null &&
+(rd = oldReflectionData.get()) != null &&
+rd.redefinedCount == classRedefinedCount) {
+return rd;
+}
+}
+}
+// Generic signature handling
+private native String getGenericSignature0();
+// Generic info repository; lazily initialized
+private transient volatile ClassRepository genericInfo;
+// accessor for factory
+private GenericsFactory getFactory() {
+// create scope and factory
+return CoreReflectionFactory.make(this, ClassScope.make(this));
+}
+// accessor for generic info repository;
+// generic info is lazily initialized
+private ClassRepository getGenericInfo() {
+ClassRepository genericInfo = this.genericInfo;
+if (genericInfo == null) {
+String signature = getGenericSignature0();
+if (signature == null) {
+genericInfo = ClassRepository.NONE;
+} else {
+genericInfo = ClassRepository.make(signature, getFactory());
+}
+this.genericInfo = genericInfo;
+}
+return (genericInfo != ClassRepository.NONE) ? genericInfo : null;
+}
+// Annotations handling
+native byte[] getRawAnnotations();
+// Since 1.8
+native byte[] getRawTypeAnnotations();
+static byte[] getExecutableTypeAnnotationBytes(Executable ex) {
+return getReflectionFactory().getExecutableTypeAnnotationBytes(ex);
+}
+native ConstantPool getConstantPool();
+//
+//
+// java.lang.reflect.Field handling
+//
+//
+// Returns an array of "root" fields. These Field objects must NOT
+// be propagated to the outside world, but must instead be copied
+// via ReflectionFactory.copyField.
+private Field[] privateGetDeclaredFields(boolean publicOnly) {
+Field[] res;
+ReflectionData<T> rd = reflectionData();
+if (rd != null) {
+res = publicOnly ? rd.declaredPublicFields : rd.declaredFields;
+if (res != null) return res;
+}
+// No cached value available; request value from VM
+res = Reflection.filterFields(this, getDeclaredFields0(publicOnly));
+if (rd != null) {
+if (publicOnly) {
+rd.declaredPublicFields = res;
+} else {
+rd.declaredFields = res;
+}
+}
+return res;
+}
+// Returns an array of "root" fields. These Field objects must NOT
+// be propagated to the outside world, but must instead be copied
+// via ReflectionFactory.copyField.
+private Field[] privateGetPublicFields(Set<Class<?>> traversedInterfaces) {
+Field[] res;
+ReflectionData<T> rd = reflectionData();
+if (rd != null) {
+res = rd.publicFields;
+if (res != null) return res;
+}
+// No cached value available; compute value recursively.
+// Traverse in correct order for getField().
+List<Field> fields = new ArrayList<>();
+if (traversedInterfaces == null) {
+traversedInterfaces = new HashSet<>();
+}
+// Local fields
+Field[] tmp = privateGetDeclaredFields(true);
+addAll(fields, tmp);
+// Direct superinterfaces, recursively
+for (Class<?> c : getInterfaces()) {
+if (!traversedInterfaces.contains(c)) {
+traversedInterfaces.add(c);
+addAll(fields, c.privateGetPublicFields(traversedInterfaces));
+}
+}
+// Direct superclass, recursively
+if (!isInterface()) {
+Class<?> c = getSuperclass();
+if (c != null) {
+addAll(fields, c.privateGetPublicFields(traversedInterfaces));
+}
+}
+res = new Field[fields.size()];
+fields.toArray(res);
+if (rd != null) {
+rd.publicFields = res;
+}
+return res;
+}
+private static void addAll(Collection<Field> c, Field[] o) {
+for (Field f : o) {
+c.add(f);
+}
+}
+//
+//
+// java.lang.reflect.Constructor handling
+//
+//
+// Returns an array of "root" constructors. These Constructor
+// objects must NOT be propagated to the outside world, but must
+// instead be copied via ReflectionFactory.copyConstructor.
+private Constructor<T>[] privateGetDeclaredConstructors(boolean publicOnly) {
+Constructor<T>[] res;
+ReflectionData<T> rd = reflectionData();
+if (rd != null) {
+res = publicOnly ? rd.publicConstructors : rd.declaredConstructors;
+if (res != null) return res;
+}
+// No cached value available; request value from VM
+if (isInterface()) {
+@SuppressWarnings("unchecked")
+Constructor<T>[] temporaryRes = (Constructor<T>[]) new Constructor<?>[0];
+res = temporaryRes;
+} else {
+res = getDeclaredConstructors0(publicOnly);
+}
+if (rd != null) {
+if (publicOnly) {
+rd.publicConstructors = res;
+} else {
+rd.declaredConstructors = res;
+}
+}
+return res;
+}
+//
+//
+// java.lang.reflect.Method handling
+//
+//
+// Returns an array of "root" methods. These Method objects must NOT
+// be propagated to the outside world, but must instead be copied
+// via ReflectionFactory.copyMethod.
+private Method[] privateGetDeclaredMethods(boolean publicOnly) {
+Method[] res;
+ReflectionData<T> rd = reflectionData();
+if (rd != null) {
+res = publicOnly ? rd.declaredPublicMethods : rd.declaredMethods;
+if (res != null) return res;
+}
+// No cached value available; request value from VM
+res = Reflection.filterMethods(this, getDeclaredMethods0(publicOnly));
+if (rd != null) {
+if (publicOnly) {
+rd.declaredPublicMethods = res;
+} else {
+rd.declaredMethods = res;
+}
+}
+return res;
+}
+// Returns an array of "root" methods. These Method objects must NOT
+// be propagated to the outside world, but must instead be copied
+// via ReflectionFactory.copyMethod.
+private Method[] privateGetPublicMethods() {
+Method[] res;
+ReflectionData<T> rd = reflectionData();
+if (rd != null) {
+res = rd.publicMethods;
+if (res != null) return res;
+}
+// No cached value available; compute value recursively.
+// Start by fetching public declared methods...
+PublicMethods pms = new PublicMethods();
+for (Method m : privateGetDeclaredMethods(/* publicOnly */ true)) {
+pms.merge(m);
+}
+// ...then recur over superclass methods...
+Class<?> sc = getSuperclass();
+if (sc != null) {
+for (Method m : sc.privateGetPublicMethods()) {
+pms.merge(m);
+}
+}
+// ...and finally over direct superinterfaces.
+for (Class<?> intf : getInterfaces(/* cloneArray */ false)) {
+for (Method m : intf.privateGetPublicMethods()) {
+// static interface methods are not inherited
+if (!Modifier.isStatic(m.getModifiers())) {
+pms.merge(m);
+}
+}
+}
+res = pms.toArray();
+if (rd != null) {
+rd.publicMethods = res;
+}
+return res;
+}
+//
+// Helpers for fetchers of one field, method, or constructor
+//
+// This method does not copy the returned Field object!
+private static Field searchFields(Field[] fields, String name) {
+for (Field field : fields) {
+if (field.getName().equals(name)) {
+return field;
+}
+}
+return null;
+}
+// Returns a "root" Field object. This Field object must NOT
+// be propagated to the outside world, but must instead be copied
+// via ReflectionFactory.copyField.
+private Field getField0(String name) {
+// Note: the intent is that the search algorithm this routine
+// uses be equivalent to the ordering imposed by
+// privateGetPublicFields(). It fetches only the declared
+// public fields for each class, however, to reduce the number
+// of Field objects which have to be created for the common
+// case where the field being requested is declared in the
+// class which is being queried.
+Field res;
+// Search declared public fields
+if ((res = searchFields(privateGetDeclaredFields(true), name)) != null) {
+return res;
+}
+// Direct superinterfaces, recursively
+Class<?>[] interfaces = getInterfaces(/* cloneArray */ false);
+for (Class<?> c : interfaces) {
+if ((res = c.getField0(name)) != null) {
+return res;
+}
+}
+// Direct superclass, recursively
+if (!isInterface()) {
+Class<?> c = getSuperclass();
+if (c != null) {
+if ((res = c.getField0(name)) != null) {
+return res;
+}
+}
+}
+return null;
+}
+// This method does not copy the returned Method object!
+private static Method searchMethods(Method[] methods,
+String name,
+Class<?>[] parameterTypes)
+{
+ReflectionFactory fact = getReflectionFactory();
+Method res = null;
+for (Method m : methods) {
+if (m.getName().equals(name)
+&& arrayContentsEq(parameterTypes,
+fact.getExecutableSharedParameterTypes(m))
+&& (res == null
+|| (res.getReturnType() != m.getReturnType()
+&& res.getReturnType().isAssignableFrom(m.getReturnType()))))
+res = m;
+}
+return res;
+}
+private static final Class<?>[] EMPTY_CLASS_ARRAY = new Class<?>[0];
+// Returns a "root" Method object. This Method object must NOT
+// be propagated to the outside world, but must instead be copied
+// via ReflectionFactory.copyMethod.
+private Method getMethod0(String name, Class<?>[] parameterTypes) {
+PublicMethods.MethodList res = getMethodsRecursive(
+name,
+parameterTypes == null ? EMPTY_CLASS_ARRAY : parameterTypes,
+/* includeStatic */ true);
+return res == null ? null : res.getMostSpecific();
+}
+// Returns a list of "root" Method objects. These Method objects must NOT
+// be propagated to the outside world, but must instead be copied
+// via ReflectionFactory.copyMethod.
+private PublicMethods.MethodList getMethodsRecursive(String name,
+Class<?>[] parameterTypes,
+boolean includeStatic) {
+// 1st check declared public methods
+Method[] methods = privateGetDeclaredMethods(/* publicOnly */ true);
+PublicMethods.MethodList res = PublicMethods.MethodList
+.filter(methods, name, parameterTypes, includeStatic);
+// if there is at least one match among declared methods, we need not
+// search any further as such match surely overrides matching methods
+// declared in superclass(es) or interface(s).
+if (res != null) {
+return res;
+}
+// if there was no match among declared methods,
+// we must consult the superclass (if any) recursively...
+Class<?> sc = getSuperclass();
+if (sc != null) {
+res = sc.getMethodsRecursive(name, parameterTypes, includeStatic);
+}
+// ...and coalesce the superclass methods with methods obtained
+// from directly implemented interfaces excluding static methods...
+for (Class<?> intf : getInterfaces(/* cloneArray */ false)) {
+res = PublicMethods.MethodList.merge(
+res, intf.getMethodsRecursive(name, parameterTypes,
+/* includeStatic */ false));
+}
+return res;
+}
+// Returns a "root" Constructor object. This Constructor object must NOT
+// be propagated to the outside world, but must instead be copied
+// via ReflectionFactory.copyConstructor.
+private Constructor<T> getConstructor0(Class<?>[] parameterTypes,
+int which) throws NoSuchMethodException
+{
+ReflectionFactory fact = getReflectionFactory();
+Constructor<T>[] constructors = privateGetDeclaredConstructors((which == Member.PUBLIC));
+for (Constructor<T> constructor : constructors) {
+if (arrayContentsEq(parameterTypes,
+fact.getExecutableSharedParameterTypes(constructor))) {
+return constructor;
+}
+}
+throw new NoSuchMethodException(methodToString("<init>", parameterTypes));
+}
+//
+// Other helpers and base implementation
+//
+private static boolean arrayContentsEq(Object[] a1, Object[] a2) {
+if (a1 == null) {
+return a2 == null || a2.length == 0;
+}
+if (a2 == null) {
+return a1.length == 0;
+}
+if (a1.length != a2.length) {
+return false;
+}
+for (int i = 0; i < a1.length; i++) {
+if (a1[i] != a2[i]) {
+return false;
+}
+}
+return true;
+}
+private static Field[] copyFields(Field[] arg) {
+Field[] out = new Field[arg.length];
+ReflectionFactory fact = getReflectionFactory();
+for (int i = 0; i < arg.length; i++) {
+out[i] = fact.copyField(arg[i]);
+}
+return out;
+}
+private static Method[] copyMethods(Method[] arg) {
+Method[] out = new Method[arg.length];
+ReflectionFactory fact = getReflectionFactory();
+for (int i = 0; i < arg.length; i++) {
+out[i] = fact.copyMethod(arg[i]);
+}
+return out;
+}
+private static <U> Constructor<U>[] copyConstructors(Constructor<U>[] arg) {
+Constructor<U>[] out = arg.clone();
+ReflectionFactory fact = getReflectionFactory();
+for (int i = 0; i < out.length; i++) {
+out[i] = fact.copyConstructor(out[i]);
+}
+return out;
+}
+private native Field[]       getDeclaredFields0(boolean publicOnly);
+private native Method[]      getDeclaredMethods0(boolean publicOnly);
+private native Constructor<T>[] getDeclaredConstructors0(boolean publicOnly);
+private native Class<?>[]   getDeclaredClasses0();
+/**
+* Helper method to get the method name from arguments.
+*/
+private String methodToString(String name, Class<?>[] argTypes) {
+StringJoiner sj = new StringJoiner(", ", getName() + "." + name + "(", ")");
+if (argTypes != null) {
+for (int i = 0; i < argTypes.length; i++) {
+Class<?> c = argTypes[i];
+sj.add((c == null) ? "null" : c.getName());
+}
+}
+return sj.toString();
+}
+/** use serialVersionUID from JDK 1.1 for interoperability */
+private static final long serialVersionUID = 3206093459760846163L;
+/**
+* Class Class is special cased within the Serialization Stream Protocol.
+*
+* A Class instance is written initially into an ObjectOutputStream in the
+* following format:
+* <pre>
+*      {@code TC_CLASS} ClassDescriptor
+*      A ClassDescriptor is a special cased serialization of
+*      a {@code java.io.ObjectStreamClass} instance.
+* </pre>
+* A new handle is generated for the initial time the class descriptor
+* is written into the stream. Future references to the class descriptor
+* are written as references to the initial class descriptor instance.
+*
+* @see java.io.ObjectStreamClass
+*/
+private static final ObjectStreamField[] serialPersistentFields =
+new ObjectStreamField[0];
+/**
+* Returns the assertion status that would be assigned to this
+* class if it were to be initialized at the time this method is invoked.
+* If this class has had its assertion status set, the most recent
+* setting will be returned; otherwise, if any package default assertion
+* status pertains to this class, the most recent setting for the most
+* specific pertinent package default assertion status is returned;
+* otherwise, if this class is not a system class (i.e., it has a
+* class loader) its class loader's default assertion status is returned;
+* otherwise, the system class default assertion status is returned.
+* <p>
+* Few programmers will have any need for this method; it is provided
+* for the benefit of the JRE itself.  (It allows a class to determine at
+* the time that it is initialized whether assertions should be enabled.)
+* Note that this method is not guaranteed to return the actual
+* assertion status that was (or will be) associated with the specified
+* class when it was (or will be) initialized.
+*
+* @return the desired assertion status of the specified class.
+* @see    java.lang.ClassLoader#setClassAssertionStatus
+* @see    java.lang.ClassLoader#setPackageAssertionStatus
+* @see    java.lang.ClassLoader#setDefaultAssertionStatus
+* @since  1.4
+*/
+public boolean desiredAssertionStatus() {
+ClassLoader loader = getClassLoader0();
+// If the loader is null this is a system class, so ask the VM
+if (loader == null)
+return desiredAssertionStatus0(this);
+// If the classloader has been initialized with the assertion
+// directives, ask it. Otherwise, ask the VM.
+synchronized(loader.assertionLock) {
+if (loader.classAssertionStatus != null) {
+return loader.desiredAssertionStatus(getName());
+}
+}
+return desiredAssertionStatus0(this);
+}
+// Retrieves the desired assertion status of this class from the VM
+private static native boolean desiredAssertionStatus0(Class<?> clazz);
+/**
+* Returns true if and only if this class was declared as an enum in the
+* source code.
+*
+* @return true if and only if this class was declared as an enum in the
+*     source code
+* @since 1.5
+*/
+public boolean isEnum() {
+// An enum must both directly extend java.lang.Enum and have
+// the ENUM bit set; classes for specialized enum constants
+// don't do the former.
+return (this.getModifiers() & ENUM) != 0 &&
+this.getSuperclass() == java.lang.Enum.class;
+}
+// Fetches the factory for reflective objects
+private static ReflectionFactory getReflectionFactory() {
+if (reflectionFactory == null) {
+reflectionFactory =
+java.security.AccessController.doPrivileged
+(new ReflectionFactory.GetReflectionFactoryAction());
+}
+return reflectionFactory;
+}
+private static ReflectionFactory reflectionFactory;
+/**
+* Returns the elements of this enum class or null if this
+* Class object does not represent an enum type.
+*
+* @return an array containing the values comprising the enum class
+*     represented by this Class object in the order they're
+*     declared, or null if this Class object does not
+*     represent an enum type
+* @since 1.5
+*/
+public T[] getEnumConstants() {
+T[] values = getEnumConstantsShared();
+return (values != null) ? values.clone() : null;
+}
+/**
+* Returns the elements of this enum class or null if this
+* Class object does not represent an enum type;
+* identical to getEnumConstants except that the result is
+* uncloned, cached, and shared by all callers.
+*/
+T[] getEnumConstantsShared() {
+T[] constants = enumConstants;
+if (constants == null) {
+if (!isEnum()) return null;
+try {
+final Method values = getMethod("values");
+java.security.AccessController.doPrivileged(
+new java.security.PrivilegedAction<>() {
+public Void run() {
+values.setAccessible(true);
+return null;
+}
+});
+@SuppressWarnings("unchecked")
+T[] temporaryConstants = (T[])values.invoke(null);
+enumConstants = constants = temporaryConstants;
+}
+// These can happen when users concoct enum-like classes
+// that don't comply with the enum spec.
+catch (InvocationTargetException | NoSuchMethodException |
+IllegalAccessException ex) { return null; }
+}
+return constants;
+}
+private transient volatile T[] enumConstants;
+/**
+* Returns a map from simple name to enum constant.  This package-private
+* method is used internally by Enum to implement
+* {@code public static <T extends Enum<T>> T valueOf(Class<T>, String)}
+* efficiently.  Note that the map is returned by this method is
+* created lazily on first use.  Typically it won't ever get created.
+*/
+Map<String, T> enumConstantDirectory() {
+Map<String, T> directory = enumConstantDirectory;
+if (directory == null) {
+T[] universe = getEnumConstantsShared();
+if (universe == null)
+throw new IllegalArgumentException(
+getName() + " is not an enum type");
+directory = new HashMap<>(2 * universe.length);
+for (T constant : universe) {
+directory.put(((Enum<?>)constant).name(), constant);
+}
+enumConstantDirectory = directory;
+}
+return directory;
+}
+private transient volatile Map<String, T> enumConstantDirectory;
+/**
+* Casts an object to the class or interface represented
+* by this {@code Class} object.
+*
+* @param obj the object to be cast
+* @return the object after casting, or null if obj is null
+*
+* @throws ClassCastException if the object is not
+* null and is not assignable to the type T.
+*
+* @since 1.5
+*/
+@SuppressWarnings("unchecked")
+@HotSpotIntrinsicCandidate
+public T cast(Object obj) {
+if (obj != null && !isInstance(obj))
+throw new ClassCastException(cannotCastMsg(obj));
+return (T) obj;
+}
+private String cannotCastMsg(Object obj) {
+return "Cannot cast " + obj.getClass().getName() + " to " + getName();
+}
+/**
+* Casts this {@code Class} object to represent a subclass of the class
+* represented by the specified class object.  Checks that the cast
+* is valid, and throws a {@code ClassCastException} if it is not.  If
+* this method succeeds, it always returns a reference to this class object.
+*
+* <p>This method is useful when a client needs to "narrow" the type of
+* a {@code Class} object to pass it to an API that restricts the
+* {@code Class} objects that it is willing to accept.  A cast would
+* generate a compile-time warning, as the correctness of the cast
+* could not be checked at runtime (because generic types are implemented
+* by erasure).
+*
+* @param <U> the type to cast this class object to
+* @param clazz the class of the type to cast this class object to
+* @return this {@code Class} object, cast to represent a subclass of
+*    the specified class object.
+* @throws ClassCastException if this {@code Class} object does not
+*    represent a subclass of the specified class (here "subclass" includes
+*    the class itself).
+* @since 1.5
+*/
+@SuppressWarnings("unchecked")
+public <U> Class<? extends U> asSubclass(Class<U> clazz) {
+if (clazz.isAssignableFrom(this))
+return (Class<? extends U>) this;
+else
+throw new ClassCastException(this.toString());
+}
+/**
+* @throws NullPointerException {@inheritDoc}
+* @since 1.5
+*/
+@SuppressWarnings("unchecked")
+public <A extends Annotation> A getAnnotation(Class<A> annotationClass) {
+Objects.requireNonNull(annotationClass);
+return (A) annotationData().annotations.get(annotationClass);
+}
+/**
+* {@inheritDoc}
+* @throws NullPointerException {@inheritDoc}
+* @since 1.5
+*/
+@Override
+public boolean isAnnotationPresent(Class<? extends Annotation> annotationClass) {
+return GenericDeclaration.super.isAnnotationPresent(annotationClass);
+}
+/**
+* @throws NullPointerException {@inheritDoc}
+* @since 1.8
+*/
+@Override
+public <A extends Annotation> A[] getAnnotationsByType(Class<A> annotationClass) {
+Objects.requireNonNull(annotationClass);
+AnnotationData annotationData = annotationData();
+return AnnotationSupport.getAssociatedAnnotations(annotationData.declaredAnnotations,
+this,
+annotationClass);
+}
+/**
+* @since 1.5
+*/
+public Annotation[] getAnnotations() {
+return AnnotationParser.toArray(annotationData().annotations);
+}
+/**
+* @throws NullPointerException {@inheritDoc}
+* @since 1.8
+*/
+@Override
+@SuppressWarnings("unchecked")
+public <A extends Annotation> A getDeclaredAnnotation(Class<A> annotationClass) {
+Objects.requireNonNull(annotationClass);
+return (A) annotationData().declaredAnnotations.get(annotationClass);
+}
+/**
+* @throws NullPointerException {@inheritDoc}
+* @since 1.8
+*/
+@Override
+public <A extends Annotation> A[] getDeclaredAnnotationsByType(Class<A> annotationClass) {
+Objects.requireNonNull(annotationClass);
+return AnnotationSupport.getDirectlyAndIndirectlyPresent(annotationData().declaredAnnotations,
+annotationClass);
+}
+/**
+* @since 1.5
+*/
+public Annotation[] getDeclaredAnnotations()  {
+return AnnotationParser.toArray(annotationData().declaredAnnotations);
+}
+// annotation data that might get invalidated when JVM TI RedefineClasses() is called
+private static class AnnotationData {
+final Map<Class<? extends Annotation>, Annotation> annotations;
+final Map<Class<? extends Annotation>, Annotation> declaredAnnotations;
+// Value of classRedefinedCount when we created this AnnotationData instance
+final int redefinedCount;
+AnnotationData(Map<Class<? extends Annotation>, Annotation> annotations,
+Map<Class<? extends Annotation>, Annotation> declaredAnnotations,
+int redefinedCount) {
+this.annotations = annotations;
+this.declaredAnnotations = declaredAnnotations;
+this.redefinedCount = redefinedCount;
+}
+}
+// Annotations cache
+@SuppressWarnings("UnusedDeclaration")
+private transient volatile AnnotationData annotationData;
+private AnnotationData annotationData() {
+while (true) { // retry loop
+AnnotationData annotationData = this.annotationData;
+int classRedefinedCount = this.classRedefinedCount;
+if (annotationData != null &&
+annotationData.redefinedCount == classRedefinedCount) {
+return annotationData;
+}
+// null or stale annotationData -> optimistically create new instance
+AnnotationData newAnnotationData = createAnnotationData(classRedefinedCount);
+// try to install it
+if (Atomic.casAnnotationData(this, annotationData, newAnnotationData)) {
+// successfully installed new AnnotationData
+return newAnnotationData;
+}
+}
+}
+private AnnotationData createAnnotationData(int classRedefinedCount) {
+Map<Class<? extends Annotation>, Annotation> declaredAnnotations =
+AnnotationParser.parseAnnotations(getRawAnnotations(), getConstantPool(), this);
+Class<?> superClass = getSuperclass();
+Map<Class<? extends Annotation>, Annotation> annotations = null;
+if (superClass != null) {
+Map<Class<? extends Annotation>, Annotation> superAnnotations =
+superClass.annotationData().annotations;
+for (Map.Entry<Class<? extends Annotation>, Annotation> e : superAnnotations.entrySet()) {
+Class<? extends Annotation> annotationClass = e.getKey();
+if (AnnotationType.getInstance(annotationClass).isInherited()) {
+if (annotations == null) { // lazy construction
+annotations = new LinkedHashMap<>((Math.max(
+declaredAnnotations.size(),
+Math.min(12, declaredAnnotations.size() + superAnnotations.size())
+) * 4 + 2) / 3
+);
+}
+annotations.put(annotationClass, e.getValue());
+}
+}
+}
+if (annotations == null) {
+// no inherited annotations -> share the Map with declaredAnnotations
+annotations = declaredAnnotations;
+} else {
+// at least one inherited annotation -> declared may override inherited
+annotations.putAll(declaredAnnotations);
+}
+return new AnnotationData(annotations, declaredAnnotations, classRedefinedCount);
+}
+// Annotation types cache their internal (AnnotationType) form
+@SuppressWarnings("UnusedDeclaration")
+private transient volatile AnnotationType annotationType;
+boolean casAnnotationType(AnnotationType oldType, AnnotationType newType) {
+return Atomic.casAnnotationType(this, oldType, newType);
+}
+AnnotationType getAnnotationType() {
+return annotationType;
+}
+Map<Class<? extends Annotation>, Annotation> getDeclaredAnnotationMap() {
+return annotationData().declaredAnnotations;
+}
+/* Backing store of user-defined values pertaining to this class.
+* Maintained by the ClassValue class.
+*/
+transient ClassValue.ClassValueMap classValueMap;
+/**
+* Returns an {@code AnnotatedType} object that represents the use of a
+* type to specify the superclass of the entity represented by this {@code
+* Class} object. (The <em>use</em> of type Foo to specify the superclass
+* in '...  extends Foo' is distinct from the <em>declaration</em> of type
+* Foo.)
+*
+* <p> If this {@code Class} object represents a type whose declaration
+* does not explicitly indicate an annotated superclass, then the return
+* value is an {@code AnnotatedType} object representing an element with no
+* annotations.
+*
+* <p> If this {@code Class} represents either the {@code Object} class, an
+* interface type, an array type, a primitive type, or void, the return
+* value is {@code null}.
+*
+* @return an object representing the superclass
+* @since 1.8
+*/
+public AnnotatedType getAnnotatedSuperclass() {
+if (this == Object.class ||
+isInterface() ||
+isArray() ||
+isPrimitive() ||
+this == Void.TYPE) {
+return null;
+}
+return TypeAnnotationParser.buildAnnotatedSuperclass(getRawTypeAnnotations(), getConstantPool(), this);
+}
+/**
+* Returns an array of {@code AnnotatedType} objects that represent the use
+* of types to specify superinterfaces of the entity represented by this
+* {@code Class} object. (The <em>use</em> of type Foo to specify a
+* superinterface in '... implements Foo' is distinct from the
+* <em>declaration</em> of type Foo.)
+*
+* <p> If this {@code Class} object represents a class, the return value is
+* an array containing objects representing the uses of interface types to
+* specify interfaces implemented by the class. The order of the objects in
+* the array corresponds to the order of the interface types used in the
+* 'implements' clause of the declaration of this {@code Class} object.
+*
+* <p> If this {@code Class} object represents an interface, the return
+* value is an array containing objects representing the uses of interface
+* types to specify interfaces directly extended by the interface. The
+* order of the objects in the array corresponds to the order of the
+* interface types used in the 'extends' clause of the declaration of this
+* {@code Class} object.
+*
+* <p> If this {@code Class} object represents a class or interface whose
+* declaration does not explicitly indicate any annotated superinterfaces,
+* the return value is an array of length 0.
+*
+* <p> If this {@code Class} object represents either the {@code Object}
+* class, an array type, a primitive type, or void, the return value is an
+* array of length 0.
+*
+* @return an array representing the superinterfaces
+* @since 1.8
+*/
+public AnnotatedType[] getAnnotatedInterfaces() {
+return TypeAnnotationParser.buildAnnotatedInterfaces(getRawTypeAnnotations(), getConstantPool(), this);
+}
+}

changeset 47216	71c04702a3d5
parent 46884	b2c074043e74
child 48044	2919fa8f237c