--- old/src/share/classes/com/sun/java/swing/plaf/windows/WindowsPopupWindow.java	2014-03-09 23:49:25.000000000 -0700
+++ new/src/share/classes/com/sun/java/swing/plaf/windows/WindowsPopupWindow.java	2014-03-09 23:49:24.000000000 -0700
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2002, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 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
@@ -49,6 +49,7 @@
  *
  * @author Amy Fowler
  */
+@SuppressWarnings("serial") // Superclass is not serializable across versions
 class WindowsPopupWindow extends JWindow {
 
     static final int UNDEFINED_WINDOW_TYPE      = 0;