Dear All, It appears to be that the getWorkingMemoryEntryPoint() method returns NULL in my code given below. Note that EventProcessingOption = STREAM and ClockType = "realtime" if that is of any importance. Cheers, Malinda public class EventKnowledgeBase { private KnowledgeBase kbase = null; private StatefulKnowledgeSession ksession = null; private WorkingMemoryEntryPoint globalStream = null; public EventKnowledgeBase() throws Exception { super(); kbase = readKnowledgeBase(); ksession = kbase.newStatefulKnowledgeSession(); KnowledgeBaseConfiguration config = KnowledgeBaseFactory.newKnowledgeBaseConfiguration(); config.setOption( EventProcessingOption.STREAM ); KnowledgeSessionConfiguration kbSessionConfig = KnowledgeBaseFactory.newKnowledgeSessionConfiguration(); kbSessionConfig.setOption( ClockTypeOption.get("realtime") ); globalStream = ksession.getWorkingMemoryEntryPoint( "global" ); if(null == globalStream){ System.out.println("WorkingMemoryEntryPoint is Null"); //YEAH..! IT RETURNS NULL } } } _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users