[jboss-jira] [JBoss JIRA] (DROOLS-2495) NullPointerException in Declaration.getHashCode() when getter in LHS and serialize/deserialize package

[Mario Fusco (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-2495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco resolved DROOLS-2495.
---------------------------------
    Resolution: Done


Fixed by https://github.com/kiegroup/drools/commit/8c4f9267ea4d3ee53a8729c70734374b301a12d5

> NullPointerException in Declaration.getHashCode() when getter in LHS and serialize/deserialize package
> ------------------------------------------------------------------------------------------------------
>
>                 Key: DROOLS-2495
>                 URL: https://issues.jboss.org/browse/DROOLS-2495
>             Project: Drools
>          Issue Type: Bug
>          Components: core engine
>    Affects Versions: 7.7.0.Final
>            Reporter: Toshiya Kobayashi
>            Assignee: Mario Fusco
>              Labels: support
>
> Under the condition:
> - A rule uses a getter method in LHS. e.g. "Cheese(type == $p.getName())"
> - A package is serialized/deserialized
> executing the rule throws NullPointerException.
> {noformat}
> java.lang.NullPointerException: null
> 	at org.drools.core.rule.Declaration.getHashCode(Declaration.java:267)
> 	at org.drools.core.util.AbstractHashTable$FieldIndex.hashCodeOf(AbstractHashTable.java:333)
> 	at org.drools.core.util.AbstractHashTable$SingleIndex.hashCodeOf(AbstractHashTable.java:397)
> 	at org.drools.core.util.index.TupleIndexHashTable.getOrCreate(TupleIndexHashTable.java:392)
> 	at org.drools.core.util.index.TupleIndexHashTable.add(TupleIndexHashTable.java:358)
> 	at org.drools.core.phreak.PhreakJoinNode.doLeftInserts(PhreakJoinNode.java:95)
> 	at org.drools.core.phreak.PhreakJoinNode.doNode(PhreakJoinNode.java:71)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.switchOnDoBetaNode(RuleNetworkEvaluator.java:552)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.evalBetaNode(RuleNetworkEvaluator.java:538)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.evalNode(RuleNetworkEvaluator.java:373)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:333)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:169)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:127)
> 	at org.drools.core.phreak.RuleExecutor.reEvaluateNetwork(RuleExecutor.java:212)
> 	at org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:87)
> 	at org.drools.core.concurrent.AbstractRuleEvaluator.internalEvaluateAndFire(AbstractRuleEvaluator.java:34)
> 	at org.drools.core.concurrent.SequentialRuleEvaluator.evaluateAndFire(SequentialRuleEvaluator.java:43)
> 	at org.drools.core.common.DefaultAgenda.fireLoop(DefaultAgenda.java:1067)
> 	at org.drools.core.common.DefaultAgenda.internalFireAllRules(DefaultAgenda.java:1014)
> 	at org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1006)
> 	at org.drools.core.impl.StatefulKnowledgeSessionImpl.internalFireAllRules(StatefulKnowledgeSessionImpl.java:1315)
> 	at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1306)
> 	at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1290)
> 	at org.drools.compiler.integrationtests.SerializedPackageMergeTest.testBuildAndSerializePackagesWithGetterInLHS(SerializedPackageMergeTest.java:220)
> {noformat}



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