*/
public void testAddVetoableChangeListenerStringVetoableChangeListener_property_duplicate() {
MockSource source = new MockSource();
VetoableChangeSupport support = new VetoableChangeSupport(source);
VetoableChangeListener proxy = EventHandler.create(
VetoableChangeListener.class, source, "setText");
VetoableChangeListener proxy2 = EventHandler.create(
VetoableChangeListener.class, source, "setText");
String propertyName = "label";
support.addVetoableChangeListener(propertyName, proxy);
support.addVetoableChangeListener(propertyName, proxy2);