Re: [rules-users] NPE on retract

Have you correctly implemented your equals and hashcode? Have you made sure that the objects fields haven't changed between the assert and the retract? Mark Chris West wrote: Hi, Using version 3.0.6 of jboss rules, while retracting an object, I get the following: java.lang.NullPointerException at org.drools.reteoo.beta.InstanceEqualConstrRightMemory.remove(Unknown Source) at org.drools.reteoo.BetaMemory.remove (Unknown Source) at org.drools.reteoo.NotNode.retractObject(Unknown Source) at org.drools.reteoo.ObjectSource.propagateRetractObject(Unknown Source) at org.drools.reteoo.RightInputAdapterNode.retractTuple (Unknown Source) at org.drools.reteoo.TupleSource.propagateRetractTuple(Unknown Source) at org.drools.reteoo.NotNode.retractTuple(Unknown Source) at org.drools.reteoo.TupleSource.propagateRetractTuple (Unknown Source) at org.drools.reteoo.JoinNode.retractObject(Unknown Source) at org.drools.reteoo.ObjectSource.propagateRetractObject(Unknown Source) at org.drools.reteoo.ObjectTypeNode.retractObject (Unknown Source) at org.drools.reteoo.Rete.retractObject(Unknown Source) at org.drools.reteoo.ReteooRuleBase.retractObject(Unknown Source) at org.drools.reteoo.ReteooWorkingMemory.doRetract(Unknown Source) at org.drools.common.AbstractWorkingMemory.retractObject(Unknown Source) at org.drools.common.AbstractWorkingMemory.retractObject(Unknown Source) at ascc.rules.AbstractRulesCoordinator.statusChanged( AbstractRulesCoordinator.java :354) at ascc.rules.AbstractRulesCoordinator$1.statusChanged( AbstractRulesCoordinator.java:111) at ascc.status.BaseStatusBoard.notifyChange(BaseStatusBoard.java:211) at ascc.status.BaseStatusBoard.notifyChange (BaseStatusBoard.java:191) at ascc.status.DefaultParkingStatusBoard.empty( DefaultParkingStatusBoard.java:318) at ascc.spotting.DefaultSpottingCoordinator.computeInitialSpot( DefaultSpottingCoordinator.java:578) at ascc.spotting.DefaultSpottingCoordinator.statusCreated( DefaultSpottingCoordinator.java:827) at ascc.status.BaseStatusBoard.notifyCreate(BaseStatusBoard.java:100) at ascc.status.BaseStatusBoard.notifyCreate (BaseStatusBoard.java:80) at ascc.status.DefaultAirPlanStatusBoard.missionAssignmentComplete( DefaultAirPlanStatusBoard.java:479) at ascc.missionassignment.Rule_6___Complete_mission_assignment_for_event_0.consequence(Rule_6___Complete_mission_assignment_for_event_0.java:36) at ascc.missionassignment.Rule_6___Complete_mission_assignment_for_event_0ConsequenceInvoker.evaluate(Rule_6___Complete_mission_assignment_for_event_0ConsequenceInvoker.java:24) ... 7 more Is there something I could be doing wrong? Is this a known bug? Thanks, -Chris ------------------------------ _______________________________________________ rules-users mailing list rules-users@lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users