--- old/src/share/classes/sun/tools/java/AmbiguousClass.java	2014-04-01 16:22:16.000000000 -0700
+++ new/src/share/classes/sun/tools/java/AmbiguousClass.java	2014-04-01 16:22:16.000000000 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1994, 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1994, 2014, 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
@@ -34,6 +34,7 @@
  * they are subject to change or removal without notice.
  */
 
+@SuppressWarnings("serial") // JDK implementation class
 public
 class AmbiguousClass extends ClassNotFound {
     /**