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

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}