--- a/jdk/src/share/classes/javax/swing/JWindow.java	Tue Dec 13 17:30:21 2011 +0400
+++ b/jdk/src/share/classes/javax/swing/JWindow.java	Tue Dec 13 18:38:39 2011 +0400
@@ -89,6 +89,7 @@
  *
  * @author David Kloba
  */
+@SuppressWarnings("serial")
 public class JWindow extends Window implements Accessible,
                                                RootPaneContainer,
                                TransferHandler.HasGetTransferHandler
@@ -663,6 +664,7 @@
      * Java Accessibility API appropriate to window user-interface
      * elements.
      */
+    @SuppressWarnings("serial")
     protected class AccessibleJWindow extends AccessibleAWTWindow {
         // everything is in the new parent, AccessibleAWTWindow
     }