src/share/classes/java/util/IdentityHashMap.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2012, 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

@@ -694,12 +694,14 @@
      * Returns a shallow copy of this identity hash map: the keys and values
      * themselves are not cloned.
      *
      * @return a shallow copy of this map
      */
-    public Object clone() {
+    @Override
+    public IdentityHashMap<K,V> clone() {
         try {
+            @SuppressWarnings("unchecked")
             IdentityHashMap<K,V> m = (IdentityHashMap<K,V>) super.clone();
             m.entrySet = null;
             m.table = table.clone();
             return m;
         } catch (CloneNotSupportedException e) {