System.exit doesnt work on Sun OS 5.7 ??

Question

Hi, I have encountered a kind of wierd problem. I have a small application that uses System.exit when the user wants to shut down the application.
That works fine in Windows but in Sun OS 5.7 the application just freeze.
Im using java version:
java version "1.4.1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1-b21)
Java HotSpot(TM) Client VM (build 1.4.1-b21, mixed mode)
Would be greatful if someone could help me.
This code is an small example of my application.
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class ExitTest extends JFrame implements ActionListener {
JButton jButton1 = new JButton();
public ExitTest() {
try {
jbInit();
catch(Exception e) {
e.printStackTrace();
public static void main(String[] args) {
new ExitTest().setVisible(true);
private void jbInit() throws Exception {
jButton1.setText("Exit");
jButton1.addActionListener(this);
addWindowListener(this);
this.getContentPane().add(jButton1, BorderLayout.SOUTH);
public void actionPerformed(ActionEvent e) {
this.setVisible(false);
System.out.println("Exiting");
try {
System.exit(0);
} catch(SecurityException ex) {
ex.printStackTrace();
---------------------------------------------------------------------------------------------------------

Answer 1

Hmm, sorry about that, my misstake, that line is still there from an erlier attempt to use windowlisteners instead ... that line should not be there ...