firePropertyChange(ENABLED_CHANGED_PROPERTY, oldEnabled, (boolean) enabled);
firePropertyChange("enabled", oldEnabled, enabled);
  public void setEnabled(boolean enabled)  {    boolean oldEnabled = super.isEnabled();    if (enabled != oldEnabled)      {	super.setEnabled(enabled);	firePropertyChange(ENABLED_CHANGED_PROPERTY, oldEnabled,	                   (boolean) enabled);      }  }