else model.setArmed(false);
  public void mouseEntered(MouseEvent e)  {    if (e.getSource() instanceof AbstractButton)      {        AbstractButton button = (AbstractButton) e.getSource();        ButtonModel model = button.getModel();        if (button.isRolloverEnabled())          model.setRollover(true);                if (model.isPressed()             && (e.getModifiersEx() & InputEvent.BUTTON1_DOWN_MASK) != 0)          model.setArmed(true);        else          model.setArmed(false);      }  }