if (incrButton == null) incrButton = new BasicArrowButton(orientation); else ((BasicArrowButton) incrButton).setDirection(orientation); return incrButton;
return new BasicArrowButton(orientation);
  protected JButton createIncreaseButton(int orientation)  {    if (incrButton == null)      incrButton = new BasicArrowButton(orientation);    else      ((BasicArrowButton) incrButton).setDirection(orientation);    return incrButton;  }