diff -r 96a1a5a9323c -r f0e59c4852de jdk/src/share/classes/javax/swing/JToolTip.java
--- a/jdk/src/share/classes/javax/swing/JToolTip.java	Tue Dec 13 17:30:21 2011 +0400
+++ b/jdk/src/share/classes/javax/swing/JToolTip.java	Tue Dec 13 18:38:39 2011 +0400
@@ -66,6 +66,7 @@
  * @author Dave Moore
  * @author Rich Shiavi
  */
+@SuppressWarnings("serial")
 public class JToolTip extends JComponent implements Accessible {
     /**
      * @see #getUIClassID
@@ -251,6 +252,7 @@
      * has been added to the <code>java.beans</code> package.
      * Please see {@link java.beans.XMLEncoder}.
      */
+    @SuppressWarnings("serial")
     protected class AccessibleJToolTip extends AccessibleJComponent {
 
         /**