--- old/src/share/classes/sun/awt/dnd/SunDropTargetEvent.java	2014-01-29 21:49:34.000000000 -0800
+++ new/src/share/classes/sun/awt/dnd/SunDropTargetEvent.java	2014-01-29 21:49:34.000000000 -0800
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000, 2004, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 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
@@ -29,6 +29,7 @@
 import java.awt.dnd.InvalidDnDOperationException;
 import java.awt.event.MouseEvent;
 
+@SuppressWarnings("serial") // JDK-implementation class
 public class SunDropTargetEvent extends MouseEvent {
 
     public static final int MOUSE_DROPPED = MouseEvent.MOUSE_RELEASED;