private void paintWindowImmediately() {
Graphics windowGraphics = getGraphics();
// IE8 windowGraphics is not null
if (VERBOSE) System.err.println("paintWindowImmediately graphics=" + windowGraphics);
if (windowGraphics != null) paint(getGraphics());
else repaint();
}
@Override
public void update(Graphics windowGraphics) {
paint(windowGraphics);
}