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  1. Drools
  2. DROOLS-1338

NPE happens in TupleSetsImpl.setNextTuple()

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Details

    • Bug
    • Status: Resolved (View Workflow)
    • Critical
    • Resolution: Done
    • 6.4.0.Final
    • None
    • core engine
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      rum mvn test with reproducer customer provided.
      (I can't attach it to the ticket as it contains customer's private data.)

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      rum mvn test with reproducer customer provided. (I can't attach it to the ticket as it contains customer's private data.)
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    • NEW

    Description

      In customer's performance test case, NPE happens in TupleSetsImpl.setNextTuple() with the following stack.

      java.lang.NullPointerException
      at org.drools.core.common.TupleSetsImpl.setNextTuple(TupleSetsImpl.java:352)
      at org.drools.core.common.TupleSetsImpl.removeInsert(TupleSetsImpl.java:168)
      at org.drools.core.phreak.RuleNetworkEvaluator.deleteChildLeftTuple(RuleNetworkEvaluator.java:729)
      at org.drools.core.phreak.RuleNetworkEvaluator.unlinkAndDeleteChildLeftTuple(RuleNetworkEvaluator.java:721)
      at org.drools.core.phreak.PhreakNotNode.doRightUpdates(PhreakNotNode.java:343)
      at org.drools.core.phreak.PhreakNotNode.doNode(PhreakNotNode.java:74)
      at org.drools.core.phreak.RuleNetworkEvaluator.switchOnDoBetaNode(RuleNetworkEvaluator.java:524)
      at org.drools.core.phreak.RuleNetworkEvaluator.evalBetaNode(RuleNetworkEvaluator.java:505)
      at org.drools.core.phreak.RuleNetworkEvaluator.evalNode(RuleNetworkEvaluator.java:341)
      at org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:301)
      at org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:136)
      at org.drools.core.phreak.AddRemoveRule.forceFlushLeftTuple(AddRemoveRule.java:692)
      at org.drools.core.phreak.AddRemoveRule.flushLeftTupleIfNecessary(AddRemoveRule.java:629)
      at org.drools.core.reteoo.NotNode.assertObject(NotNode.java:161)
      at org.drools.core.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:494)
      at org.drools.core.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:384)
      at org.drools.core.reteoo.AlphaNode.assertObject(AlphaNode.java:134)
      at org.drools.core.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:494)
      at org.drools.core.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:384)
      at org.drools.core.reteoo.ObjectTypeNode.propagateAssert(ObjectTypeNode.java:304)
      at org.drools.core.phreak.PropagationEntry$Insert.execute(PropagationEntry.java:132)
      at org.drools.core.phreak.SynchronizedPropagationList.flush(SynchronizedPropagationList.java:82)
      at org.drools.core.phreak.SynchronizedPropagationList.flush(SynchronizedPropagationList.java:72)
      at org.drools.core.impl.StatefulKnowledgeSessionImpl.flushPropagations(StatefulKnowledgeSessionImpl.java:2053)
      at org.drools.core.phreak.RuleExecutor.fire(RuleExecutor.java:128)
      at org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:74)
      at org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:960)
      at org.drools.core.common.DefaultAgenda.fireLoop(DefaultAgenda.java:1303)
      at org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1241)
      at org.drools.core.impl.StatefulKnowledgeSessionImpl.internalFireAllRules(StatefulKnowledgeSessionImpl.java:1336)
      at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1327)
      at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1308)

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              mfusco@redhat.com Mario Fusco
              rhn-support-hmiura Hiroko Miura
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              Dates

                Created:
                Updated:
                Resolved: