How to use

DefaultKieBaseEventListener

in

org.kie.api.event.kiebase

@Test
public void testKnowledgeBaseEventSupportLeak() throws Exception {
  // JBRULES-3666
  KieBase kbase = getKnowledgeBase();
  KieBaseEventListener listener = new DefaultKieBaseEventListener();
  kbase.addEventListener( listener );
  kbase.addEventListener( listener );
  assertEquals( 1, ( (KnowledgeBaseImpl) kbase ).getKieBaseEventListeners().size() );
  kbase.removeEventListener( listener );
  assertEquals( 0, ( (KnowledgeBaseImpl) kbase ).getKieBaseEventListeners().size() );
}

@Test
public void testKnowledgeBaseEventSupportLeak() throws Exception {
  // JBRULES-3666
  KnowledgeBase kbase = getKnowledgeBase();
  KieBaseEventListener listener = new DefaultKieBaseEventListener();
  kbase.addEventListener(listener);
  kbase.addEventListener(listener);
  assertEquals(1, ((InternalKnowledgeBase) kbase).getKieBaseEventListeners().size());
  kbase.removeEventListener(listener);
  assertEquals(0, ((InternalKnowledgeBase) kbase).getKieBaseEventListeners().size());
}