[jboss-jira] [JBoss JIRA] Created: (JBRULES-1302) Drools ConsequenceException

[Prakash Chellappa (JIRA)]

Drools ConsequenceException
---------------------------

                 Key: JBRULES-1302
                 URL: http://jira.jboss.com/jira/browse/JBRULES-1302
             Project: JBoss Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-brms
    Affects Versions: 4.0.1
         Environment: Unix 
            Reporter: Prakash Chellappa
             Fix For: 4.0.1


Hi 

We are from UBS Investment Bank and are facing a critical problem in one of production System currently using Drools.We require your urgent assistance to get this resolved asap.Below is the details of the error message we are getting.

org.drools.spi.ConsequenceException: java.lang.NullPointerException
    at org.drools.base.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:14)
    at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:553)
    at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:514)
    at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:462)
    at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:424)
    at com.ubs.tsna.rhino.matcher2.pb.engine.PBMatchingEngine.doMatching(Unknown Source)
    at com.ubs.tsna.rhino.matcher2.engine.MatchingEngine.match(Unknown Source)
    at com.ubs.tsna.rhino.matcher2.action.MatchingAction.execute(Unknown Source)
    at com.ubs.tsna.workflow.process.ProcessFlow.executeAction(Unknown Source)
    at com.ubs.tsna.workflow.process.ProcessFlow.executeSingleAction(Unknown Source)
    at com.ubs.tsna.workflow.process.ProcessFlow.executeAction(Unknown Source)
    at com.ubs.tsna.workflow.process.ProcessFlow.execute(Unknown Source)
    at com.ubs.tsna.workflow.process.BaseProcess.processMessage(Unknown Source)
    at com.ubs.tsna.workflow.process.Process.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
    at org.drools.base.com.ubs.tsna.rhino.matcher2.pb.model.TransactionEvent11782857$getMessage.getValue(Unknown Source)
    at org.drools.base.extractors.BaseObjectClassFieldExtractor.getHashCode(BaseObjectClassFieldExtractor.java:139)
    at org.drools.base.ClassFieldExtractor.getHashCode(ClassFieldExtractor.java:225)
    at org.drools.rule.Declaration.getHashCode(Declaration.java:272)
    at org.drools.util.AbstractHashTable$SingleIndex.hashCodeOf(AbstractHashTable.java:489)
    at org.drools.util.TupleIndexHashTable.remove(TupleIndexHashTable.java:203)
    at org.drools.reteoo.NotNode.retractTuple(NotNode.java:208)
    at org.drools.reteoo.SingleTupleSinkAdapter.propagateRetractTuple(SingleTupleSinkAdapter.java:38)
    at org.drools.reteoo.JoinNode.retractObject(JoinNode.java:181)
    at org.drools.reteoo.CompositeObjectSinkAdapter.propagateRetractObject(CompositeObjectSinkAdapter.java:375)
    at org.drools.reteoo.AlphaNode.retractObject(AlphaNode.java:158)
    at org.drools.reteoo.SingleObjectSinkAdapter.propagateRetractObject(SingleObjectSinkAdapter.java:32)
    at org.drools.reteoo.AlphaNode.retractObject(AlphaNode.java:158)
    at org.drools.reteoo.CompositeObjectSinkAdapter.propagateRetractObject(CompositeObjectSinkAdapter.java:366)
    at org.drools.reteoo.AlphaNode.retractObject(AlphaNode.java:158)
    at org.drools.reteoo.CompositeObjectSinkAdapter.propagateRetractObject(CompositeObjectSinkAdapter.java:366)
    at org.drools.reteoo.ObjectTypeNode.retractObject(ObjectTypeNode.java:180)
    at org.drools.reteoo.Rete.retractObject(Rete.java:214)
    at org.drools.reteoo.ReteooRuleBase.retractObject(ReteooRuleBase.java:220)
    at org.drools.reteoo.ReteooWorkingMemory.doRetract(ReteooWorkingMemory.java:79)
    at org.drools.common.AbstractWorkingMemory.retract(AbstractWorkingMemory.java:999)
    at org.drools.base.DefaultKnowledgeHelper.retract(DefaultKnowledgeHelper.java:115)
    at com.ubs.tsna.rhino.matcher.rules.Rule_Match_0.consequence(Rule_Match_0.java:55)
    at com.ubs.tsna.rhino.matcher.rules.Rule_Match_0ConsequenceInvoker.evaluate(Rule_Match_0ConsequenceInvoker.java:26)
    at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:550)

We get the error message when we retract the object.The piece of code is given below

                if( c instanceof TransactionBulkBean ) {
                        retract(c);
                        }

                if( t instanceof TransactionBulkBean )  {
                        retract(t);
                        }


                // Retract Old Events
                for( TransactionEvent ev : MATCHER.retractUnMatchedEvents(c, t) ) {
                         ev.setMessage(null) ; retract (ev);
                }

We dont have support contract at this point of time,But we dont mind going in one by future.We would like to get your help to get this issue addressed ASAP.

We would like to call and speak to you on urgent basis.Give us a call on 203 719 4625 or give us the no we can reach you at.

Thanks
Prakash

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