src/share/classes/com/sun/java/swing/plaf/windows/WindowsInternalFrameUI.java

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 1997, 2005, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 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
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -86,10 +86,11 @@
     protected JComponent createNorthPane(JInternalFrame w) {
         titlePane = new WindowsInternalFrameTitlePane(w);
         return titlePane;
     }
 
+    @SuppressWarnings("serial") // Superclass is not serializable across versions
     private class XPBorder extends AbstractBorder {
         private Skin leftSkin   = xp.getSkin(frame, Part.WP_FRAMELEFT);
         private Skin rightSkin  = xp.getSkin(frame, Part.WP_FRAMERIGHT);
         private Skin bottomSkin = xp.getSkin(frame, Part.WP_FRAMEBOTTOM);