public class Level extends JWindow {

    private final Timer timer = initTimer();

    private static Timer initTimer()
    {
        Timer timer = new Timer("events generator", true);
        return timer;
    }

    public Level() {
        setLayout(null);
        timer.schedule(new TimerTask()
        {
            @Override
            public void run()
            {
                onRedrawEvent();
            }
        }, 0, 10);
    }

    protected void onRedrawEvent()
    {
        repaint();
    }