JInternalFrame setDefaultCloseOperation

[Matt Fair <matt@netasol.com>]

Hello,
I don't think the setDefaultCloseOperation works correctly.
What I want to do is when I click on the 'X' in the right corner of the 
window, that it just hides.  I have tried HIDE_ON_CLOSE and that doesn't 
work, and I have also written my own close operations by setting 
DO_NOTHING_ON_CLOSE.  I just want to set JInteranalFrame 
setVisible(false) so when I call setVisible(true) on it that it shows up 
again.

You can see my code below.
Any sugestions?
Thanks in advanced,
Matt

public class ApplicationWindow extends JInternalFrame implements Plugin {
 public ApplicationWindow() {
   setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
   addInternalFrameListener(new InternalFrameAdapter() {
     public void internalFrameClosing(InternalFrameEvent e) {
     System.out.println("hiding ....");
     JInternalFrame frame = (JInternalFrame)e.getSource();
     frame.setVisible(false);
     System.out.println("done");
   }});
   setFrameIcon (new ImageIcon (ClientData.instance().getImage 
("computer-small.png")));
   setIconifiable (true);
   setClosable (true);
   setResizable (true);
   setVisible(false); //don't show starting off
   setTitle("Applications");
 }
}