--- old/src/share/classes/javax/swing/PopupFactory.java	2014-03-23 13:38:21.000000000 -0700
+++ new/src/share/classes/javax/swing/PopupFactory.java	2014-03-23 13:38:21.000000000 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1999, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1999, 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
@@ -941,6 +941,7 @@
 
         // This implements SwingHeavyWeight so that repaints on it
         // are processed by the RepaintManager and SwingPaintEventDispatcher.
+        @SuppressWarnings("serial") // JDK-implementation class
         private static class MediumWeightComponent extends Panel implements
                                                            SwingHeavyWeight {
             MediumWeightComponent() {