SerializedVCListener serialized = new SerializedVCListener(
propertyName1);
support.addVetoableChangeListener(propertyName1, serialized);
final String propertyName2 = "top";
NonSerializedVCListener nonSerialized = new NonSerializedVCListener(
propertyName2);
support.addVetoableChangeListener(propertyName2, nonSerialized);
assertTrue(support.hasListeners(propertyName1));
assertTrue(support.hasListeners(propertyName2));