* @see #getVetoableChangeListeners
* @since 1.4
*/
public synchronized VetoableChangeListener[] getVetoableChangeListeners(String propertyName) {
if (vetoableSupport == null) {
vetoableSupport = new VetoableChangeSupport(this);
}
return vetoableSupport.getVetoableChangeListeners(propertyName);
}