* java.lang.Object, java.lang.Object) public void firePropertyChange(String
* propertyName, Object oldValue, Object newValue) {
* changeSupport.firePropertyChange(propertyName, oldValue, newValue); }
* java.lang.Object, java.lang.Object) public void firePropertyChange(String
* propertyName, Object oldValue, Object newValue) {
* changeSupport.firePropertyChange(propertyName, oldValue, newValue); }