feat(jdk8): move files to new folder to avoid resources compiled.

jdkSrc/jdk8/sun/reflect/misc/ConstructorUtil.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2005, 2011, 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 sun.reflect.misc;
+
+import java.lang.reflect.Constructor;
+
+public final class ConstructorUtil {
+
+    private ConstructorUtil() {
+    }
+
+    public static Constructor<?> getConstructor(Class<?> cls, Class<?>[] params)
+        throws NoSuchMethodException {
+        ReflectUtil.checkPackageAccess(cls);
+        return cls.getConstructor(params);
+    }
+
+    public static Constructor<?>[] getConstructors(Class<?> cls) {
+        ReflectUtil.checkPackageAccess(cls);
+        return cls.getConstructors();
+    }
+}

jdkSrc/jdk8/sun/reflect/misc/FieldUtil.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2005, 2011, 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 sun.reflect.misc;
+
+import java.lang.reflect.Field;
+
+/*
+ * Create a trampoline class.
+ */
+public final class FieldUtil {
+
+    private FieldUtil() {
+    }
+
+    public static Field getField(Class<?> cls, String name)
+        throws NoSuchFieldException {
+        ReflectUtil.checkPackageAccess(cls);
+        return cls.getField(name);
+    }
+
+    public static Field[] getFields(Class<?> cls) {
+        ReflectUtil.checkPackageAccess(cls);
+        return cls.getFields();
+    }
+
+    public static Field[] getDeclaredFields(Class<?> cls) {
+        ReflectUtil.checkPackageAccess(cls);
+        return cls.getDeclaredFields();
+    }
+}

jdkSrc/jdk8/sun/reflect/misc/MethodUtil.java

@@ -0,0 +1,410 @@
+/*
+ * Copyright (c) 2005, 2013, 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 sun.reflect.misc;
+
+import java.io.EOFException;
+import java.security.AllPermission;
+import java.security.AccessController;
+import java.security.PermissionCollection;
+import java.security.SecureClassLoader;
+import java.security.PrivilegedExceptionAction;
+import java.security.CodeSource;
+import java.io.InputStream;
+import java.io.BufferedInputStream;
+import java.io.IOException;
+import java.net.URL;
+import java.net.URLConnection;
+import java.lang.reflect.Method;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.AccessibleObject;
+import java.lang.reflect.Modifier;
+import java.util.HashMap;
+import java.util.Map;
+
+import sun.misc.IOUtils;
+
+class Trampoline {
+    static {
+        if (Trampoline.class.getClassLoader() == null) {
+            throw new Error(
+                "Trampoline must not be defined by the bootstrap classloader");
+        }
+    }
+
+    private static void ensureInvocableMethod(Method m)
+        throws InvocationTargetException
+    {
+        Class<?> clazz = m.getDeclaringClass();
+        if (clazz.equals(AccessController.class) ||
+            clazz.equals(Method.class) ||
+            clazz.getName().startsWith("java.lang.invoke."))
+            throw new InvocationTargetException(
+                new UnsupportedOperationException("invocation not supported"));
+    }
+
+    private static Object invoke(Method m, Object obj, Object[] params)
+        throws InvocationTargetException, IllegalAccessException
+    {
+        ensureInvocableMethod(m);
+        return m.invoke(obj, params);
+    }
+}
+
+/*
+ * Create a trampoline class.
+ */
+public final class MethodUtil extends SecureClassLoader {
+    private static final String MISC_PKG = "sun.reflect.misc.";
+    private static final String TRAMPOLINE = MISC_PKG + "Trampoline";
+    private static final Method bounce = getTrampoline();
+
+    private MethodUtil() {
+        super();
+    }
+
+    public static Method getMethod(Class<?> cls, String name, Class<?>[] args)
+        throws NoSuchMethodException {
+        ReflectUtil.checkPackageAccess(cls);
+        return cls.getMethod(name, args);
+    }
+
+    public static Method[] getMethods(Class<?> cls) {
+        ReflectUtil.checkPackageAccess(cls);
+        return cls.getMethods();
+    }
+
+    /*
+     * Discover the public methods on public classes
+     * and interfaces accessible to any caller by calling
+     * Class.getMethods() and walking towards Object until
+     * we're done.
+     */
+     public static Method[] getPublicMethods(Class<?> cls) {
+        // compatibility for update release
+        if (System.getSecurityManager() == null) {
+            return cls.getMethods();
+        }
+        Map<Signature, Method> sigs = new HashMap<Signature, Method>();
+        while (cls != null) {
+            boolean done = getInternalPublicMethods(cls, sigs);
+            if (done) {
+                break;
+            }
+            getInterfaceMethods(cls, sigs);
+            cls = cls.getSuperclass();
+        }
+        return sigs.values().toArray(new Method[sigs.size()]);
+    }
+
+    /*
+     * Process the immediate interfaces of this class or interface.
+     */
+    private static void getInterfaceMethods(Class<?> cls,
+                                            Map<Signature, Method> sigs) {
+        Class<?>[] intfs = cls.getInterfaces();
+        for (int i=0; i < intfs.length; i++) {
+            Class<?> intf = intfs[i];
+            boolean done = getInternalPublicMethods(intf, sigs);
+            if (!done) {
+                getInterfaceMethods(intf, sigs);
+            }
+        }
+    }
+
+    /*
+     *
+     * Process the methods in this class or interface
+     */
+    private static boolean getInternalPublicMethods(Class<?> cls,
+                                                    Map<Signature, Method> sigs) {
+        Method[] methods = null;
+        try {
+            /*
+             * This class or interface is non-public so we
+             * can't use any of it's methods. Go back and
+             * try again with a superclass or superinterface.
+             */
+            if (!Modifier.isPublic(cls.getModifiers())) {
+                return false;
+            }
+            if (!ReflectUtil.isPackageAccessible(cls)) {
+                return false;
+            }
+
+            methods = cls.getMethods();
+        } catch (SecurityException se) {
+            return false;
+        }
+
+        /*
+         * Check for inherited methods with non-public
+         * declaring classes. They might override and hide
+         * methods from their superclasses or
+         * superinterfaces.
+         */
+        boolean done = true;
+        for (int i=0; i < methods.length; i++) {
+            Class<?> dc = methods[i].getDeclaringClass();
+            if (!Modifier.isPublic(dc.getModifiers())) {
+                done = false;
+                break;
+            }
+        }
+
+        if (done) {
+            /*
+             * We're done. Spray all the methods into
+             * the list and then we're out of here.
+             */
+            for (int i=0; i < methods.length; i++) {
+                addMethod(sigs, methods[i]);
+            }
+        } else {
+            /*
+             * Simulate cls.getDeclaredMethods() by
+             * stripping away inherited methods.
+             */
+            for (int i=0; i < methods.length; i++) {
+                Class<?> dc = methods[i].getDeclaringClass();
+                if (cls.equals(dc)) {
+                    addMethod(sigs, methods[i]);
+                }
+            }
+        }
+        return done;
+    }
+
+    private static void addMethod(Map<Signature, Method> sigs, Method method) {
+        Signature signature = new Signature(method);
+        if (!sigs.containsKey(signature)) {
+            sigs.put(signature, method);
+        } else if (!method.getDeclaringClass().isInterface()){
+            /*
+             * Superclasses beat interfaces.
+             */
+            Method old = sigs.get(signature);
+            if (old.getDeclaringClass().isInterface()) {
+                sigs.put(signature, method);
+            }
+        }
+    }
+
+    /**
+     * A class that represents the unique elements of a method that will be a
+     * key in the method cache.
+     */
+    private static class Signature {
+        private String methodName;
+        private Class<?>[] argClasses;
+
+        private volatile int hashCode = 0;
+
+        Signature(Method m) {
+            this.methodName = m.getName();
+            this.argClasses = m.getParameterTypes();
+        }
+
+        public boolean equals(Object o2) {
+            if (this == o2) {
+                return true;
+            }
+            Signature that = (Signature)o2;
+            if (!(methodName.equals(that.methodName))) {
+                return false;
+            }
+            if (argClasses.length != that.argClasses.length) {
+                return false;
+            }
+            for (int i = 0; i < argClasses.length; i++) {
+                if (!(argClasses[i] == that.argClasses[i])) {
+                  return false;
+                }
+            }
+            return true;
+        }
+
+        /**
+         * Hash code computed using algorithm suggested in
+         * Effective Java, Item 8.
+         */
+        public int hashCode() {
+            if (hashCode == 0) {
+                int result = 17;
+                result = 37 * result + methodName.hashCode();
+                if (argClasses != null) {
+                    for (int i = 0; i < argClasses.length; i++) {
+                        result = 37 * result + ((argClasses[i] == null) ? 0 :
+                            argClasses[i].hashCode());
+                    }
+                }
+                hashCode = result;
+            }
+            return hashCode;
+        }
+    }
+
+
+    /*
+     * Bounce through the trampoline.
+     */
+    public static Object invoke(Method m, Object obj, Object[] params)
+        throws InvocationTargetException, IllegalAccessException {
+        try {
+            return bounce.invoke(null, new Object[] {m, obj, params});
+        } catch (InvocationTargetException ie) {
+            Throwable t = ie.getCause();
+
+            if (t instanceof InvocationTargetException) {
+                throw (InvocationTargetException)t;
+            } else if (t instanceof IllegalAccessException) {
+                throw (IllegalAccessException)t;
+            } else if (t instanceof RuntimeException) {
+                throw (RuntimeException)t;
+            } else if (t instanceof Error) {
+                throw (Error)t;
+            } else {
+                throw new Error("Unexpected invocation error", t);
+            }
+        } catch (IllegalAccessException iae) {
+            // this can't happen
+            throw new Error("Unexpected invocation error", iae);
+        }
+    }
+
+    private static Method getTrampoline() {
+        try {
+            return AccessController.doPrivileged(
+                new PrivilegedExceptionAction<Method>() {
+                    public Method run() throws Exception {
+                        Class<?> t = getTrampolineClass();
+                        Class<?>[] types = {
+                            Method.class, Object.class, Object[].class
+                        };
+                        Method b = t.getDeclaredMethod("invoke", types);
+                        b.setAccessible(true);
+                        return b;
+                    }
+                });
+        } catch (Exception e) {
+            throw new InternalError("bouncer cannot be found", e);
+        }
+    }
+
+
+    protected synchronized Class<?> loadClass(String name, boolean resolve)
+        throws ClassNotFoundException
+    {
+        // First, check if the class has already been loaded
+        ReflectUtil.checkPackageAccess(name);
+        Class<?> c = findLoadedClass(name);
+        if (c == null) {
+            try {
+                c = findClass(name);
+            } catch (ClassNotFoundException e) {
+                // Fall through ...
+            }
+            if (c == null) {
+                c = getParent().loadClass(name);
+            }
+        }
+        if (resolve) {
+            resolveClass(c);
+        }
+        return c;
+    }
+
+
+    protected Class<?> findClass(final String name)
+        throws ClassNotFoundException
+    {
+        if (!name.startsWith(MISC_PKG)) {
+            throw new ClassNotFoundException(name);
+        }
+        String path = name.replace('.', '/').concat(".class");
+        URL res = getResource(path);
+        if (res != null) {
+            try {
+                return defineClass(name, res);
+            } catch (IOException e) {
+                throw new ClassNotFoundException(name, e);
+            }
+        } else {
+            throw new ClassNotFoundException(name);
+        }
+    }
+
+
+    /*
+     * Define the proxy classes
+     */
+    private Class<?> defineClass(String name, URL url) throws IOException {
+        byte[] b = getBytes(url);
+        CodeSource cs = new CodeSource(null, (java.security.cert.Certificate[])null);
+        if (!name.equals(TRAMPOLINE)) {
+            throw new IOException("MethodUtil: bad name " + name);
+        }
+        return defineClass(name, b, 0, b.length, cs);
+    }
+
+
+    /*
+     * Returns the contents of the specified URL as an array of bytes.
+     */
+    private static byte[] getBytes(URL url) throws IOException {
+        URLConnection uc = url.openConnection();
+        if (uc instanceof java.net.HttpURLConnection) {
+            java.net.HttpURLConnection huc = (java.net.HttpURLConnection) uc;
+            int code = huc.getResponseCode();
+            if (code >= java.net.HttpURLConnection.HTTP_BAD_REQUEST) {
+                throw new IOException("open HTTP connection failed.");
+            }
+        }
+        int len = uc.getContentLength();
+        try (InputStream in = new BufferedInputStream(uc.getInputStream())) {
+            byte[] b = IOUtils.readAllBytes(in);
+            if (len != -1 && b.length != len)
+                throw new EOFException("Expected:" + len + ", read:" + b.length);
+            return b;
+        }
+    }
+
+
+    protected PermissionCollection getPermissions(CodeSource codesource)
+    {
+        PermissionCollection perms = super.getPermissions(codesource);
+        perms.add(new AllPermission());
+        return perms;
+    }
+
+    private static Class<?> getTrampolineClass() {
+        try {
+            return Class.forName(TRAMPOLINE, true, new MethodUtil());
+        } catch (ClassNotFoundException e) {
+        }
+        return null;
+    }
+
+}

jdkSrc/jdk8/sun/reflect/misc/ReflectUtil.java

@@ -0,0 +1,346 @@
+/*
+ * Copyright (c) 2005, 2013, 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 sun.reflect.misc;
+
+import java.lang.reflect.Member;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.lang.reflect.Proxy;
+import java.util.Arrays;
+import sun.reflect.Reflection;
+import sun.security.util.SecurityConstants;
+
+public final class ReflectUtil {
+
+    private ReflectUtil() {
+    }
+
+    public static Class<?> forName(String name)
+        throws ClassNotFoundException {
+        checkPackageAccess(name);
+        return Class.forName(name);
+    }
+
+    public static Object newInstance(Class<?> cls)
+        throws InstantiationException, IllegalAccessException {
+        checkPackageAccess(cls);
+        return cls.newInstance();
+    }
+
+    /*
+     * Reflection.ensureMemberAccess is overly-restrictive
+     * due to a bug. We awkwardly work around it for now.
+     */
+    public static void ensureMemberAccess(Class<?> currentClass,
+                                          Class<?> memberClass,
+                                          Object target,
+                                          int modifiers)
+        throws IllegalAccessException
+    {
+        if (target == null && Modifier.isProtected(modifiers)) {
+            int mods = modifiers;
+            mods = mods & (~Modifier.PROTECTED);
+            mods = mods | Modifier.PUBLIC;
+
+            /*
+             * See if we fail because of class modifiers
+             */
+            Reflection.ensureMemberAccess(currentClass,
+                                          memberClass,
+                                          target,
+                                          mods);
+            try {
+                /*
+                 * We're still here so class access was ok.
+                 * Now try with default field access.
+                 */
+                mods = mods & (~Modifier.PUBLIC);
+                Reflection.ensureMemberAccess(currentClass,
+                                              memberClass,
+                                              target,
+                                              mods);
+                /*
+                 * We're still here so access is ok without
+                 * checking for protected.
+                 */
+                return;
+            } catch (IllegalAccessException e) {
+                /*
+                 * Access failed but we're 'protected' so
+                 * if the test below succeeds then we're ok.
+                 */
+                if (isSubclassOf(currentClass, memberClass)) {
+                    return;
+                } else {
+                    throw e;
+                }
+            }
+        } else {
+            Reflection.ensureMemberAccess(currentClass,
+                                          memberClass,
+                                          target,
+                                          modifiers);
+        }
+    }
+
+    private static boolean isSubclassOf(Class<?> queryClass,
+                                        Class<?> ofClass)
+    {
+        while (queryClass != null) {
+            if (queryClass == ofClass) {
+                return true;
+            }
+            queryClass = queryClass.getSuperclass();
+        }
+        return false;
+    }
+
+    /**
+     * Does a conservative approximation of member access check. Use this if
+     * you don't have an actual 'userland' caller Class/ClassLoader available.
+     * This might be more restrictive than a precise member access check where
+     * you have a caller, but should never allow a member access that is
+     * forbidden.
+     *
+     * @param m the {@code Member} about to be accessed
+     */
+    public static void conservativeCheckMemberAccess(Member m) throws SecurityException{
+        final SecurityManager sm = System.getSecurityManager();
+        if (sm == null)
+            return;
+
+        // Check for package access on the declaring class.
+        //
+        // In addition, unless the member and the declaring class are both
+        // public check for access declared member permissions.
+        //
+        // This is done regardless of ClassLoader relations between the {@code
+        // Member m} and any potential caller.
+
+        final Class<?> declaringClass = m.getDeclaringClass();
+
+        checkPackageAccess(declaringClass);
+
+        if (Modifier.isPublic(m.getModifiers()) &&
+                Modifier.isPublic(declaringClass.getModifiers()))
+            return;
+
+        // Check for declared member access.
+        sm.checkPermission(SecurityConstants.CHECK_MEMBER_ACCESS_PERMISSION);
+    }
+
+    /**
+     * Checks package access on the given class.
+     *
+     * If it is a {@link Proxy#isProxyClass(java.lang.Class)} that implements
+     * a non-public interface (i.e. may be in a non-restricted package),
+     * also check the package access on the proxy interfaces.
+     */
+    public static void checkPackageAccess(Class<?> clazz) {
+        checkPackageAccess(clazz.getName());
+        if (isNonPublicProxyClass(clazz)) {
+            checkProxyPackageAccess(clazz);
+        }
+    }
+
+    /**
+     * Checks package access on the given classname.
+     * This method is typically called when the Class instance is not
+     * available and the caller attempts to load a class on behalf
+     * the true caller (application).
+     */
+    public static void checkPackageAccess(String name) {
+        SecurityManager s = System.getSecurityManager();
+        if (s != null) {
+            String cname = name.replace('/', '.');
+            if (cname.startsWith("[")) {
+                int b = cname.lastIndexOf('[') + 2;
+                if (b > 1 && b < cname.length()) {
+                    cname = cname.substring(b);
+                }
+            }
+            int i = cname.lastIndexOf('.');
+            if (i != -1) {
+                s.checkPackageAccess(cname.substring(0, i));
+            }
+        }
+    }
+
+    public static boolean isPackageAccessible(Class<?> clazz) {
+        try {
+            checkPackageAccess(clazz);
+        } catch (SecurityException e) {
+            return false;
+        }
+        return true;
+    }
+
+    // Returns true if p is an ancestor of cl i.e. class loader 'p' can
+    // be found in the cl's delegation chain
+    private static boolean isAncestor(ClassLoader p, ClassLoader cl) {
+        ClassLoader acl = cl;
+        do {
+            acl = acl.getParent();
+            if (p == acl) {
+                return true;
+            }
+        } while (acl != null);
+        return false;
+    }
+
+    /**
+     * Returns true if package access check is needed for reflective
+     * access from a class loader 'from' to classes or members in
+     * a class defined by class loader 'to'.  This method returns true
+     * if 'from' is not the same as or an ancestor of 'to'.  All code
+     * in a system domain are granted with all permission and so this
+     * method returns false if 'from' class loader is a class loader
+     * loading system classes.  On the other hand, if a class loader
+     * attempts to access system domain classes, it requires package
+     * access check and this method will return true.
+     */
+    public static boolean needsPackageAccessCheck(ClassLoader from, ClassLoader to) {
+        if (from == null || from == to)
+            return false;
+
+        if (to == null)
+            return true;
+
+        return !isAncestor(from, to);
+    }
+
+    /**
+     * Check package access on the proxy interfaces that the given proxy class
+     * implements.
+     *
+     * @param clazz Proxy class object
+     */
+    public static void checkProxyPackageAccess(Class<?> clazz) {
+        SecurityManager s = System.getSecurityManager();
+        if (s != null) {
+            // check proxy interfaces if the given class is a proxy class
+            if (Proxy.isProxyClass(clazz)) {
+                for (Class<?> intf : clazz.getInterfaces()) {
+                    checkPackageAccess(intf);
+                }
+            }
+        }
+    }
+
+    /**
+     * Access check on the interfaces that a proxy class implements and throw
+     * {@code SecurityException} if it accesses a restricted package from
+     * the caller's class loader.
+     *
+     * @param ccl the caller's class loader
+     * @param interfaces the list of interfaces that a proxy class implements
+     */
+    public static void checkProxyPackageAccess(ClassLoader ccl,
+                                               Class<?>... interfaces)
+    {
+        SecurityManager sm = System.getSecurityManager();
+        if (sm != null) {
+            for (Class<?> intf : interfaces) {
+                ClassLoader cl = intf.getClassLoader();
+                if (needsPackageAccessCheck(ccl, cl)) {
+                    checkPackageAccess(intf);
+                }
+            }
+        }
+    }
+
+    // Note that bytecode instrumentation tools may exclude 'sun.*'
+    // classes but not generated proxy classes and so keep it in com.sun.*
+    public static final String PROXY_PACKAGE = "com.sun.proxy";
+
+    /**
+     * Test if the given class is a proxy class that implements
+     * non-public interface.  Such proxy class may be in a non-restricted
+     * package that bypasses checkPackageAccess.
+     */
+    public static boolean isNonPublicProxyClass(Class<?> cls) {
+        String name = cls.getName();
+        int i = name.lastIndexOf('.');
+        String pkg = (i != -1) ? name.substring(0, i) : "";
+        return Proxy.isProxyClass(cls) && !pkg.equals(PROXY_PACKAGE);
+    }
+
+    /**
+     * Check if the given method is a method declared in the proxy interface
+     * implemented by the given proxy instance.
+     *
+     * @param proxy a proxy instance
+     * @param method an interface method dispatched to a InvocationHandler
+     *
+     * @throws IllegalArgumentException if the given proxy or method is invalid.
+     */
+    public static void checkProxyMethod(Object proxy, Method method) {
+        // check if it is a valid proxy instance
+        if (proxy == null || !Proxy.isProxyClass(proxy.getClass())) {
+            throw new IllegalArgumentException("Not a Proxy instance");
+}
+        if (Modifier.isStatic(method.getModifiers())) {
+            throw new IllegalArgumentException("Can't handle static method");
+        }
+
+        Class<?> c = method.getDeclaringClass();
+        if (c == Object.class) {
+            String name = method.getName();
+            if (name.equals("hashCode") || name.equals("equals") || name.equals("toString")) {
+                return;
+            }
+        }
+
+        if (isSuperInterface(proxy.getClass(), c)) {
+            return;
+        }
+
+        // disallow any method not declared in one of the proxy intefaces
+        throw new IllegalArgumentException("Can't handle: " + method);
+    }
+
+    private static boolean isSuperInterface(Class<?> c, Class<?> intf) {
+        for (Class<?> i : c.getInterfaces()) {
+            if (i == intf) {
+                return true;
+            }
+            if (isSuperInterface(i, intf)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Checks if {@code Class cls} is a VM-anonymous class
+     * as defined by {@link sun.misc.Unsafe#defineAnonymousClass}
+     * (not to be confused with a Java Language anonymous inner class).
+     */
+    public static boolean isVMAnonymousClass(Class<?> cls) {
+        return cls.getName().indexOf("/") > -1;
+    }
+}