Problems with setFullScreenWindow() - crash to desktop

Question

Hello everyone,
I am trying to make my application have an option to go "full screen" (ie without decoration and start menu etc). Everything was going well, untill I tested a bit more thoroughly with dual moniters (which I have to support) I made a moniter chooser and everything - it wall works apart from these random crashes that happen.
The following is a small exmple that shows whats going on (at least it does on my computer):
import java.awt.BorderLayout;
import java.awt.GraphicsEnvironment;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingConstants;
public class Test extends JComponent
     private JFrame f1;
     private JFrame f2;
     private JLabel l;
     public Test()
          f2 = new JFrame("test");
          f2.setVisible(true);
          f2.setSize(200,200);
          f2.addKeyListener(new EscapeOutKeyListener());
          l = new JLabel("Press ALT+F4 to exit fullscreen.", SwingConstants.CENTER);
          f2.add(l, BorderLayout.CENTER);
     public static void main(String[] args)
          Test t = new Test();
     class EscapeOutKeyListener implements KeyListener
          @Override
          public void keyPressed(KeyEvent e)
               if (e.getKeyCode() == KeyEvent.VK_ESCAPE)
                    GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().setFullScreenWindow(null);
                    f1.setVisible(false);
                    f2.add(l, BorderLayout.CENTER);
                    f2.validate();
               if (e.getKeyCode() == KeyEvent.VK_SPACE)
                    f1 = new JFrame("test");
                    f1.setUndecorated(true);
                    f1.setVisible(true);
                    f1.setSize(200,200);
                    f1.setResizable(false);
                    f1.addKeyListener(new EscapeOutKeyListener());
                     f1.add(l);
                     GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().setFullScreenWindow(f1);
          @Override
          public void keyReleased(KeyEvent arg0){}
          @Override
          public void keyTyped(KeyEvent arg0){}
}The best way of re-producing it I have found is opening the application, pressing "space" (go fullscreen) press "escape" (cancel full screen) then move the window from one moniter to the next. The crash I get is:
# A fatal error has been detected by the Java Runtime Environment:
# EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6d0b6ad0, pid=18340, tid=17800
# JRE version: 6.0_21-b07
# Java VM: Java HotSpot(TM) Client VM (17.0-b17 mixed mode, sharing windows-x86 )
# Problematic frame:
# C [awt.dll+0xb6ad0]
# An error report file with more information is saved as:
# C:\Users\tofuser\scworkspace\subclipsejava\hs_err_pid18340.log
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
I hope someone can help!
Thanks
Edit: I't isn't happening very often with my example program, it happens prety much every time with my main one. It took about 10 tries of maximizing, minimizing and moving from one moniter to the other to get it to happen...

Answer 1

I've spent so long trying to find an answer to this, as soon as I post it I work it out! (though most times that happens but I work it out while writing the thread, nothing like organising things into questions to spot mistakes!)
I tried adding the launching/destroying full screen to the event dispatch thread (below if anyone finds this and doesnt know what I mean):
SwingUtilities.invokeLater(new Runnable(){
    @Override
        public void run()
            //do the full screen stuff here
});and it has not happened since! At least posting it might help others that come accross this problem.
Thanks anyway, even though no one probably saw the post ^_^