public boolean contentsRestored() { return false; }
public boolean contentsRestored() { GraphicsConfiguration c = GraphicsEnvironment.getLocalGraphicsEnvironment() .getDefaultScreenDevice().getDefaultConfiguration();  int result = drawVBuffer.validate(c);  boolean imageRestored = false;  if (result == VolatileImage.IMAGE_RESTORED) imageRestored = true; else if (result == VolatileImage.IMAGE_INCOMPATIBLE) return false;    validatedContents = true; return imageRestored; }
    public boolean contentsRestored() { return false; }