MenuListener and menus

Question

Hi everybody,
I know I've asked a lot of questions today, but I've been working on this at least 6 hours and I'm stumped. This is the last one today, I promise. :)
I have a MenuBar with multiple menus, and some of the menus don't have any items in them; they can just be selected or deselected. When those "empty" menus are selected, a dialog window is supposed to pop up and the menu is supposed to be deselected once the dialog pops up.
In my SSCCE, this functionality works fine, the first time. If you click on the "empty" menu, the dialog box pops up and the menu is deselected. If you click on the "empty" menu again, though, the "empty" menu is highlighted, and the box doesn't come up. You have to click on the menu again to un-highlight it. And finally, if you click a third time, the menu does what it's supposed to do again. So, basically, every other time you click on the "empty" menu, the menu does something wrong.
My SSCCE is:
import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.event.MenuEvent;
import javax.swing.event.MenuListener;
public class MenuSelectionTest implements MenuListener {
     public static void main(String args[]) {new MenuSelectionTest();}
     public MenuSelectionTest() {
          try {
               JFrame frame = new JFrame();
               frame.setSize( 200, 200 );
               frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
               JMenuBar bar = new JMenuBar();
               JMenu one = new JMenu( "one" );
               one.add( new JMenuItem( "blah" ) );
               JMenu two = new JMenu( "two" );
               two.addMenuListener( this );
               bar.add( one );
               bar.add( two );
               frame.add( bar, BorderLayout.NORTH );
               frame.setVisible( true );
          } catch( Exception e ) {
               e.printStackTrace();
               System.exit( -1 );
     public void menuCanceled(MenuEvent e) {
          // TODO Auto-generated method stub
     public void menuDeselected(MenuEvent e) {
          // TODO Auto-generated method stub
     public void menuSelected(MenuEvent e) {
          JOptionPane.showMessageDialog( null, "Test" );
          ((JMenu)e.getSource()).setSelected( false );
}Can anyone give me pointers on how to fix this, please?
Thanks,
Jezzica85

Answer 1

Thanks again Darryl,
Actually, I probably should have been a little more clear in my last answer. My SSCCE now works, but it's a test program. The raw text of my real program is:
     final JMenu source = (JMenu)e.getSource();
     SwingUtilities.invokeLater( new Runnable() {
         public void run() {
          source.setSelected( false );
          actionPerformed( null );          
      });Could it have something to do with the fact that I'm calling actionPerformed, do you think?
EDIT: And oops, I almost forgot -- Linux Fedora 7, JDK 6u10.
Thanks,
Jezzica85
Edited by: jezzica85 on Oct 28, 2008 2:12 PM