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diff --git a/libjava/sun/reflect/annotation/AnnotationInvocationHandler.java b/libjava/sun/reflect/annotation/AnnotationInvocationHandler.java
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+/* sun.reflect.annotation.AnnotationInvocationHandler
+   Copyright (C) 2006, 2007
+   Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package sun.reflect.annotation;
+
+import java.io.Serializable;
+import java.lang.annotation.Annotation;
+import java.lang.annotation.AnnotationTypeMismatchException;
+import java.lang.annotation.IncompleteAnnotationException;
+import java.lang.reflect.InvocationHandler;
+import java.lang.reflect.Method;
+import java.lang.reflect.Proxy;
+import java.lang.reflect.Array;
+import java.util.Arrays;
+import java.util.Iterator;
+import java.util.Map;
+
+/**
+ * This class exists for serialization compatibility with the JDK.
+ * VMs can choose to implement annotations by constructing proxies
+ * with this invocation handler, but that is not required.
+ * If a different strategy for proxy objects is chosen, they can
+ * have a writeReplace method to substitute a Proxy based on this
+ * invocation handler is used for serialization.
+ */
+public final class AnnotationInvocationHandler
+  implements InvocationHandler, Serializable
+{
+  private static final long serialVersionUID = 6182022883658399397L;
+  private final Class<? extends Annotation> type;
+  private final Map<String, ?> memberValues;
+
+  /**
+   * Construct a new invocation handler for an annotation proxy.
+   * Note that the VM is responsible for filling the memberValues map
+   * with the default values of all the annotation members.
+   */
+  public AnnotationInvocationHandler(Class<? extends Annotation> type, Map memberValues)
+  {
+    this.type = type;
+    this.memberValues = (Map<String, ?>)memberValues;
+  }
+
+  public static Annotation create(Class<? extends Annotation> type, Map memberValues)
+  {
+    for (Method m : type.getDeclaredMethods())
+      {
+	String name = m.getName();
+	if (! memberValues.containsKey(name))
+	  {
+	    // FIXME: what to do about exceptions here?
+	    memberValues.put(name, m.getDefaultValue());
+	  }
+      }
+    AnnotationInvocationHandler handler
+      = new AnnotationInvocationHandler(type, memberValues);
+    return (Annotation) Proxy.newProxyInstance(type.getClassLoader(),
+					       new Class[] { type },
+					       handler);
+  }
+
+  /**
+   * Compare an instance of AnnotationInvocationHandler with another object.
+   * Note that the other object does not have to be an
+   * AnnotationInvocationHandler, any implementation of the annotation
+   * interface is allowed to be compared for equality.
+   * Note that this makes the equals method asymmetric, but this behavior
+   * is specified by Annotation.equals and identical to the JDK.
+   *
+   * This method is public for use by other parts of the VM. Some VMs
+   * (can) use different representations of annotations that reuse this
+   * method.
+   */
+  public boolean equals(Object proxy, Object other)
+  {
+    if (type.isInstance(other))
+      {
+	try
+	  {
+	    Method[] methods = type.getDeclaredMethods();
+	    if (methods.length == memberValues.size())
+	      {
+		for (int i = 0; i < methods.length; i++)
+		  {
+		    String key = methods[i].getName();
+		    Object val = methods[i].invoke(other, (Object[])null);
+		    Object thisVal
+		      = invoke(proxy,
+			       methods[i],
+			       (Object[])null);
+		    if (! deepEquals(thisVal, val))
+		      {
+			return false;
+		      }
+		  }
+		return true;
+	      }
+	  }
+	catch (Throwable _)
+	  {
+	    // Ignore exception, like the JDK
+	  }
+      }
+    return false;
+  }
+
+  private static boolean deepEquals(Object o1, Object o2)
+  {
+    if (o1 == o2)
+      return true;
+
+    if (o1 == null || o2 == null)
+      return false;
+
+    if (o1 instanceof boolean[] && o2 instanceof boolean[])
+      return Arrays.equals((boolean[]) o1, (boolean[]) o2);
+
+    if (o1 instanceof byte[] && o2 instanceof byte[])
+      return Arrays.equals((byte[]) o1, (byte[]) o2);
+
+    if (o1 instanceof char[] && o2 instanceof char[])
+      return Arrays.equals((char[]) o1, (char[]) o2);
+
+    if (o1 instanceof short[] && o2 instanceof short[])
+      return Arrays.equals((short[]) o1, (short[]) o2);
+
+    if (o1 instanceof int[] && o2 instanceof int[])
+      return Arrays.equals((int[]) o1, (int[]) o2);
+
+    if (o1 instanceof float[] && o2 instanceof float[])
+      return Arrays.equals((float[]) o1, (float[]) o2);
+
+    if (o1 instanceof long[] && o2 instanceof long[])
+      return Arrays.equals((long[]) o1, (long[]) o2);
+
+    if (o1 instanceof double[] && o2 instanceof double[])
+      return Arrays.equals((double[]) o1, (double[]) o2);
+
+    if (o1 instanceof Object[] && o2 instanceof Object[])
+      return Arrays.equals((Object[]) o1, (Object[]) o2);
+
+    return o1.equals(o2);
+  }
+
+  private static int deepHashCode(Object obj)
+  {
+    if (obj instanceof boolean[])
+      return Arrays.hashCode((boolean[]) obj);
+
+    if (obj instanceof byte[])
+      return Arrays.hashCode((byte[]) obj);
+
+    if (obj instanceof char[])
+      return Arrays.hashCode((char[]) obj);
+
+    if (obj instanceof short[])
+      return Arrays.hashCode((short[]) obj);
+
+    if (obj instanceof int[])
+      return Arrays.hashCode((int[]) obj);
+
+    if (obj instanceof float[])
+      return Arrays.hashCode((float[]) obj);
+
+    if (obj instanceof long[])
+      return Arrays.hashCode((long[]) obj);
+
+    if (obj instanceof double[])
+      return Arrays.hashCode((double[]) obj);
+
+    if (obj instanceof Object[])
+      return Arrays.hashCode((Object[]) obj);
+
+    return obj.hashCode();
+  }
+
+  /**
+   * Compute the hashCode for an annotation. Note that the algorithm is
+   * specified by Annotation.hashCode.
+   *
+   * This method is public for use by other parts of the VM. Some VMs
+   * (can) use different representations of annotations that reuse this
+   * method.
+   */
+  public int hashCode()
+  {
+    int h = 0;
+    Iterator iter = memberValues.keySet().iterator();
+    while (iter.hasNext())
+      {
+	Object key = iter.next();
+	try
+	  {
+	    Object val
+	      = invoke(null,
+		       type.getDeclaredMethod((String)key, (Class[])null),
+		       (Object[])null);
+	    h += deepHashCode(val) ^ 127 * key.hashCode();
+	  }
+	catch (Throwable _)
+	  {
+	  }
+      }
+    return h;
+  }
+
+  private static String deepToString(Object obj)
+  {
+    if (obj instanceof Object[])
+      return Arrays.toString((Object[]) obj);
+
+    return obj.toString();
+  }
+
+  /**
+   * This method is public for use by other parts of the VM. Some VMs
+   * (can) use different representations of annotations that reuse this
+   * method.
+   */
+  public String toString()
+  {
+    StringBuffer sb = new StringBuffer();
+    sb.append('@').append(type.getName()).append('(');
+    String sep = "";
+    Iterator iter = memberValues.keySet().iterator();
+    while (iter.hasNext())
+      {
+	Object key = iter.next();
+	Object val = memberValues.get(key);
+	sb.append(sep).append(key).append('=').append(deepToString(val));
+	sep = ", ";
+      }
+    sb.append(')');
+    return sb.toString();
+  }
+
+
+  private static Class getBoxedReturnType(Method method)
+  {
+    Class returnType = method.getReturnType();
+
+    if (returnType == boolean.class)
+      return Boolean.class;
+
+    if (returnType == byte.class)
+      return Byte.class;
+
+    if (returnType == char.class)
+      return Character.class;
+
+    if (returnType == short.class)
+      return Short.class;
+
+    if (returnType == int.class)
+      return Integer.class;
+
+    if (returnType == float.class)
+      return Float.class;
+
+    if (returnType == long.class)
+      return Long.class;
+
+    if (returnType == double.class)
+      return Double.class;
+
+    return returnType;
+  }
+
+  // This is slightly awkward.  When the value of an annotation is an
+  // array, libgcj constructs an Object[], but the value() method
+  // returns an arrays of the appropriate primitive type.  We should
+  // perhaps save the resulting array rather than the Object[].
+
+  private Object coerce(Object val, Class dstType)
+    throws ArrayStoreException
+  {
+    if (! val.getClass().isArray())
+      return val;
+
+    Object[] srcArray = (Object[])val;
+    final int len = srcArray.length;
+
+    if (dstType.getComponentType().isPrimitive())
+      {
+	if (dstType == boolean[].class)
+	  {
+	    boolean[] dst = new boolean[len];
+	    for (int i = 0; i < len; i++)
+	      dst[i] = (Boolean)srcArray[i];
+	    return dst;
+	  }
+
+	if (dstType == byte[].class)
+	  {
+	    byte[] dst = new byte[len];
+	    for (int i = 0; i < len; i++)
+	      dst[i] = (Byte)srcArray[i];
+	    return dst;
+	  }
+
+	if (dstType == char[].class)
+	  {
+	    char[] dst = new char[len];
+	    for (int i = 0; i < len; i++)
+	      dst[i] = (Character)srcArray[i];
+	    return dst;
+	  }
+
+	if (dstType == short[].class)
+	  {
+	    short[] dst = new short[len];
+	    for (int i = 0; i < len; i++)
+	      dst[i] = (Short)srcArray[i];
+	    return dst;
+	  }
+
+	if (dstType == int[].class)
+	  {
+	    int[] dst = new int[len];
+	    for (int i = 0; i < len; i++)
+	      dst[i] = (Integer)srcArray[i];
+	    return dst;
+	  }
+
+	if (dstType == long[].class)
+	  {
+	    long[] dst = new long[len];
+	    for (int i = 0; i < len; i++)
+	      dst[i] = (Long)srcArray[i];
+	    return dst;
+	  }
+
+	if (dstType == float[].class)
+	  {
+	    float[] dst = new float[len];
+	    for (int i = 0; i < len; i++)
+	      dst[i] = (Float)srcArray[i];
+	    return dst;
+	  }
+
+	if (dstType == double[].class)
+	  {
+	    double[] dst = new double[len];
+	    for (int i = 0; i < len; i++)
+	      dst[i] = (Double)srcArray[i];
+	    return dst;
+	  }
+      }
+
+    Object dst = Array.newInstance(dstType.getComponentType(), len);
+    System.arraycopy((Object)srcArray, 0, dst, 0, len);
+    return dst;
+  }
+
+  public Object invoke(Object proxy, Method method, Object[] args)
+    throws Throwable
+  {
+    String methodName = method.getName().intern();
+
+    if (args == null || args.length == 0)
+      {
+	if (methodName == "toString")
+	  {
+	    return toString();
+	  }
+	else if (methodName == "hashCode")
+	  {
+	    return Integer.valueOf(hashCode());
+	  }
+	else if (methodName == "annotationType")
+	  {
+	    return type;
+	  }
+	else
+	  {
+	    Object val = memberValues.get(methodName);
+	    if (val == null)
+	      {
+		throw new IncompleteAnnotationException(type, methodName);
+	      }
+	    try
+	      {
+		if (val.getClass().isArray())
+		  val = coerce((Object[])val, method.getReturnType());
+	      }
+	    catch (ArrayStoreException _)
+	      {
+		throw new AnnotationTypeMismatchException
+		  (method, val.getClass().getName());
+	      }
+	    if (! getBoxedReturnType(method).isInstance(val))
+	      throw (new AnnotationTypeMismatchException
+		     (method, val.getClass().getName()));
+	    return val;
+	  }
+      }
+    else if (args.length == 1)
+      {
+	if (methodName == "equals")
+	  {
+	    return Boolean.valueOf(equals(proxy, args[0]));
+	  }
+      }
+    throw new InternalError("Invalid annotation proxy");
+  }
+}