--- old/src/share/classes/sun/awt/PeerEvent.java	2011-12-02 17:46:46.269935300 +0400
+++ new/src/share/classes/sun/awt/PeerEvent.java	2011-12-02 17:46:45.488890600 +0400
@@ -27,7 +27,9 @@
 
 import java.awt.event.InvocationEvent;
 
+@SuppressWarnings("serial")
 public class PeerEvent extends InvocationEvent {
+
     public static final long PRIORITY_EVENT = 0x01;
     public static final long ULTIMATE_PRIORITY_EVENT = 0x02;
     public static final long LOW_PRIORITY_EVENT = 0x04;