Java SE (Java Platform, Standard Edition)

Hi all. I'm trying to get my JDialog to correctly close when it is disposed, but with no luck. Here's a sample code showing the problem. The application will not correctly end because the JDialog is still around.

public class TestJDialog {

	public TestJDialog() {
		super();
	}

	public static void main(String[] args) {
		JDialog d = new JDialog((Frame) null, "Hello");
		d.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
		d.addWindowListener(new JDialogWindowAdapter(d));

		d.show();

		//This line will hang your system.
		//Should end the program but doesn't.  This only way
		//this program will end is if you remove the bottom
		//line and click on the x in the dialog.
		d.dispose();

	}
}

class JDialogWindowAdapter extends WindowAdapter {

	private JDialog m_dialog = null;

	/**
	 * Constructs the adapter.
	 * @param d the dialog to listen to.
	 */
	public JDialogWindowAdapter(JDialog d) {
		m_dialog = d;
	}

	public void windowClosing(WindowEvent e) {
		super.windowClosing(e);
		//Dispose the hidden parent so that there are
		//no more references to the dialog and it can 
		//be correctly garbage collected.
		 ((Window) m_dialog.getParent()).dispose();
	}
}

I've looked through the forums, but a lot of people say use EXIT_ON_CLOSE, but that's not possible with my program. I just need to find a way to correctly fire the window closing event using dispose.

Thanks!