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  1. Drools
  2. DROOLS-1338

NPE happens in TupleSetsImpl.setNextTuple()

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Details

    • Bug
    • Resolution: Done
    • Critical
    • None
    • 6.4.0.Final
    • 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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    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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          is cloned by

          Bug - A problem that impairs or prevents the functions of the product. RHBRMS-2669 NPE happens in TupleSetsImpl.setNextTuple()

          • Blocker - To be worked above all other priorities. This term is chosen when the severity of the issue is very high, has no workaround, or the effort for the change is comparatively low. Issues that may be very publicly visible and could generate significant media attention may also drive a higher priority.
          • Verified
          relates to

          Bug - A problem that impairs or prevents the functions of the product. DROOLS-1386 NPE in org.drools.core.common.TupleSetsImpl.setNextTuple

          • Critical - To be worked on immediately following BLOCKER issues.
          • Resolved

          Activity

            People

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

                Created:
                Updated:
                Resolved: