public void setFullScreen(DisplayMode displayMode) {
        final JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setUndecorated(true);
        frame.setIgnoreRepaint(true);
        frame.setResizable(false);

        device.setFullScreenWindow(frame);

        if (displayMode != null &&
            device.isDisplayChangeSupported())
        {
            try {
                device.setDisplayMode(displayMode);
            }
            catch (IllegalArgumentException ex) { }
            // fix for mac os x
            frame.setSize(displayMode.getWidth(),
                displayMode.getHeight());
        }
        // avoid potential deadlock in 1.4.1_02
        try {
            EventQueue.invokeAndWait(new Runnable() {
                public void run() {
                    frame.createBufferStrategy(2);
                }
            });
        }
        catch (InterruptedException ex) {
            // ignore
        }
        catch (InvocationTargetException  ex) {
            // ignore
        }


    }