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  1. Drools
  2. DROOLS-1177

NPE removing a not initialized rule in stream mode

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Major Major
    • 7.0.0.Beta1
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      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)

              mfusco@redhat.com Mario Fusco
              mfusco@redhat.com Mario Fusco
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                Created:
                Updated:
                Resolved: