JDK1.6 JComboBox: No event sent on same selection

Question

Hi,
In JDK1.5, with a combobox, when selecting from the dropdown list the item already selected, it sends an ActionEvent, but no ItemEvent.
In JDK1.6.0_01, no event ActionEvent is sent!
When the combobox is taken as a table cell editor, selecting the same item does not make automatically the cell quit the edition mode!, as the change is based on the ActionEvent listening!
We have to click somewhere else to make the edition stop!
Can someone explain this event strategy change between 1.5 and 1.6?
And how to make the combobox disappear from the table cell?
Just below a simple piece of code to check the combobox event sending.
Herve.
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JComboBox;
import javax.swing.JFrame;
public class ComboActionEvent extends JFrame {
     private void run() {
          JComboBox cb = new JComboBox(new String[]{"a", "b", "c", "d"});
          cb.addActionListener(new ActionListener() {
               public void actionPerformed(ActionEvent e) {
                    System.out.println ("Action event!");
          getContentPane().add (cb);
          pack();
          setVisible(true);
     public static void main (String[] arg) {
          new ComboActionEvent().run();
}

Answer 1

Hmmm
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6481977
and there are various threads in the forums about this, for example:
http://forum.java.sun.com/thread.jspa?forumID=57&threadID=5116064