*/
@Before
public void setUp() throws IntrospectionException {
// create mock objects
constraint = mock(BetaNodeFieldConstraint.class);
final ContextEntry c = mock(ContextEntry.class);
when(constraint.createContextEntry()).thenReturn(c);
InternalKnowledgeBase kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();