--- old/src/share/classes/sun/tools/jconsole/Tab.java	2012-05-21 01:33:01.226097076 +0200
+++ new/src/share/classes/sun/tools/jconsole/Tab.java	2012-05-21 01:33:00.375064818 +0200
@@ -26,11 +26,9 @@
 package sun.tools.jconsole;
 
 import java.awt.*;
-import java.awt.event.*;
-import java.beans.*;
-
 import javax.swing.*;
 
+@SuppressWarnings("serial")
 public abstract class Tab extends JPanel {
     private String name;
     private Worker worker;