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      Description

      Hi,

      I am getting the following exception when calling fireAllRules:

      Exception executing consequence for rule "ruleThatFails" in indexingproblem.remove.me.anditworks: java.lang.UnsupportedOperationException
      at org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(DefaultConsequenceExceptionHandler.java:39)
      at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1287)
      at org.drools.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:1212)
      at org.drools.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1446)
      at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:710)
      at org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:674)
      at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:230)
      at com.mycompany.app.IndexingProblemMain.main(IndexingProblemMain.java:36)
      Caused by: java.lang.UnsupportedOperationException
      at org.drools.reteoo.BaseLeftTuple.getPrevious(BaseLeftTuple.java:480)
      at org.drools.core.util.index.LeftTupleList.remove(LeftTupleList.java:114)
      at org.drools.core.util.index.LeftTupleList.removeAdd(LeftTupleList.java:68)
      at org.drools.reteoo.JoinNode.modifyLeftTuple(JoinNode.java:310)
      at org.drools.reteoo.LeftTupleSource.doModifyLeftTuple(LeftTupleSource.java:304)
      at org.drools.reteoo.LeftTupleSource.modifyLeftTuple(LeftTupleSource.java:278)
      at org.drools.reteoo.JoinNode.modifyLeftTuple(JoinNode.java:437)
      at org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateModifyLeftTuple(SingleLeftTupleSinkAdapter.java:205)
      at org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateModifyObject(SingleLeftTupleSinkAdapter.java:235)
      at org.drools.reteoo.LeftInputAdapterNode.modifyObject(LeftInputAdapterNode.java:170)
      at org.drools.reteoo.SingleObjectSinkAdapter.propagateModifyObject(SingleObjectSinkAdapter.java:68)
      at org.drools.reteoo.AlphaNode.modifyObject(AlphaNode.java:157)
      at org.drools.reteoo.CompositeObjectSinkAdapter.doPropagateModifyObject(CompositeObjectSinkAdapter.java:507)
      at org.drools.reteoo.CompositeObjectSinkAdapter.propagateModifyObject(CompositeObjectSinkAdapter.java:421)
      at org.drools.reteoo.ObjectTypeNode.modifyObject(ObjectTypeNode.java:314)
      at org.drools.reteoo.EntryPointNode.modifyObject(EntryPointNode.java:265)
      at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:483)
      at org.drools.common.NamedEntryPoint.update(NamedEntryPoint.java:383)
      at org.drools.base.DefaultKnowledgeHelper.update(DefaultKnowledgeHelper.java:337)
      at indexingproblem.remove.me.anditworks.Rule_ruleThatFails_b159773c7b1a41a2a93044d2816b96ca.defaultConsequence(Rule_ruleThatFails_b159773c7b1a41a2a93044d2816b96ca.java:9)
      at indexingproblem.remove.me.anditworks.Rule_ruleThatFails_b159773c7b1a41a2a93044d2816b96caDefaultConsequenceInvokerGenerated.evaluate(Unknown Source)
      at indexingproblem.remove.me.anditworks.Rule_ruleThatFails_b159773c7b1a41a2a93044d2816b96caDefaultConsequenceInvoker.evaluate(Unknown Source)
      at org.drools.common.DefaultAgenda.fireActivation(DefaultAgenda.java:1277)
      ... 6 more

      I have tried to create a minimal test case that recreates this issue, here it is:
      package indexingproblem.remove.me.anditworks;

      declare Criteria
      processed : boolean
      end

      declare CheeseCriteria extends Criteria
      end

      rule setUp
      salience 10000
      when

      then
      insert(new CheeseCriteria());
      end

      rule aaa
      when
      CheeseCriteria( )
      then
      end

      rule bbb
      when
      CheeseCriteria( )
      then
      end

      rule ccc
      when
      CheeseCriteria( )
      then
      end

      rule eeeFalse
      when
      Criteria( processed == false )
      then
      end

      declare Filter

      end

      rule fffTrue
      when
      Criteria( processed == true )
      Filter( )
      then

      end

      rule ruleThatFails
      when
      $criteria : Criteria( processed == false )
      then
      modify($criteria)

      { setProcessed(true) }

      end

      This is working fine with 5.3.0.Final. But it is failing with 5.4.0.Final and also 5.5.0-SNAPSHOT. Note that if you change the rule package to be "package indexingproblem" the exception is not thrown. The code for building the KnowledgeBase is standard, I haven't used any additional options. No fact is inserted only one fireAllRules call.

      Thanking you.
      Best regards,
      Michal

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                • Assignee:
                  mfusco Mario Fusco
                  Reporter:
                  michalbali Michal Bali
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                  • Created:
                    Updated:
                    Resolved: