changeSupport.firePropertyChange(propertyName, oldValue, newValue);
changeSupport.firePropertyChange(propertyName, Boolean.valueOf(oldValue), Boolean.valueOf(newValue));
  protected void firePropertyChange(String propertyName, Object oldValue,                                    Object newValue)	{          if (changeSupport != null)            changeSupport.firePropertyChange(propertyName, oldValue, newValue);	}