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  1. Drools
  2. DROOLS-1177

NPE removing a not initialized rule in stream mode

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Details

    • Bug
    • Resolution: Done
    • Major
    • 7.0.0.Beta1
    • None
    • None
    • None
    • NEW
    • NEW

    Description

      In Stream mode a path memory can have a RuleAgendaItem even if the path has been never totally linked and then it misses the first segment memory. When an incremental compilation tries to remove the rule for that path the following exception is thrown:

      java.lang.NullPointerException
	at org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:70)
	at org.drools.core.phreak.AddRemoveRule.flushStagedTuples(AddRemoveRule.java:547)
	at org.drools.core.phreak.AddRemoveRule.removeRule(AddRemoveRule.java:178)
	at org.drools.core.reteoo.ReteooBuilder.removeTerminalNode(ReteooBuilder.java:185)
	at org.drools.core.reteoo.ReteooBuilder.removeRules(ReteooBuilder.java:170)
	at org.drools.core.impl.KnowledgeBaseImpl.internalRemoveRule(KnowledgeBaseImpl.java:1685)
	at org.drools.core.impl.KnowledgeBaseImpl.access$200(KnowledgeBaseImpl.java:117)
	at org.drools.core.impl.KnowledgeBaseImpl$3.run(KnowledgeBaseImpl.java:1658)
	at org.drools.core.impl.KnowledgeBaseImpl.enqueueModification(KnowledgeBaseImpl.java:720)
	at org.drools.core.impl.KnowledgeBaseImpl.removeRule(KnowledgeBaseImpl.java:1655)
	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.preProcessRules(KnowledgeBuilderImpl.java:1155)
	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.compileRules(KnowledgeBuilderImpl.java:1106)
	at org.drools.compiler.builder.impl.KnowledgeBuilderImpl.compileAllRules(KnowledgeBuilderImpl.java:989)
	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildRules(CompositeKnowledgeBuilderImpl.java:260)
	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.buildPackages(CompositeKnowledgeBuilderImpl.java:121)
	at org.drools.compiler.builder.impl.CompositeKnowledgeBuilderImpl.build(CompositeKnowledgeBuilderImpl.java:105)
	at org.drools.compiler.kie.builder.impl.KieContainerImpl.rebuildAll(KieContainerImpl.java:386)
	at org.drools.compiler.kie.builder.impl.KieContainerImpl.updateKBase(KieContainerImpl.java:241)
	at org.drools.compiler.kie.builder.impl.KieContainerImpl.access$000(KieContainerImpl.java:80)
	at org.drools.compiler.kie.builder.impl.KieContainerImpl$1.run(KieContainerImpl.java:186)
	at org.drools.core.impl.KnowledgeBaseImpl.enqueueModification(KnowledgeBaseImpl.java:720)
	at org.drools.compiler.kie.builder.impl.KieContainerImpl.update(KieContainerImpl.java:183)
	at org.drools.compiler.kie.builder.impl.KieContainerImpl.updateToVersion(KieContainerImpl.java:130)
	at org.drools.compiler.integrationtests.incrementalcompilation.IncrementalCompilationTest.testRemoveRuleWithNonInitializedPath(IncrementalCompilationTest.java:2832)

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          is cloned by

          Bug - A problem that impairs or prevents the functions of the product. RHDM-31 NPE removing a not initialized rule in stream mode

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Closed
          is incorporated by

          Bug - A problem that impairs or prevents the functions of the product. RHBRMS-2465 [GSS](6.3.z) NPE removing a not initialized rule in stream mode

          • Major - To be worked after higher priority work items are addressed. When the severity is high and the effort to change it is low to moderate, this term is chosen. Issues in this category likely have an existing workaround but implementation or execution may be non-trivial.
          • Verified

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              mfusco@redhat.com Mario Fusco
              mfusco@redhat.com Mario Fusco
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              Dates

                Created:
                Updated:
                Resolved: