Exception thrown from WorkingMemoryLogger randomly when simultaneous evaluation taking place by different threads ----------------------------------------------------------------------------------------------------------------- Key: DROOLS-634 URL: https://issues.jboss.org/browse/DROOLS-634 Project: Drools Issue Type: Bug Affects Versions: 6.2.0.CR1 Reporter: Anantjot Anand Assignee: Mario Fusco Caused by: java.lang.NullPointerException at org.drools.core.reteoo.RuleTerminalNodeLeftTuple.getDeclarationIds(RuleTerminalNodeLeftTuple.java:394) at org.drools.core.audit.WorkingMemoryLogger.extractDeclarations(WorkingMemoryLogger.java:325) at org.drools.core.audit.WorkingMemoryLogger.matchCreated(WorkingMemoryLogger.java:269) at org.drools.core.event.AgendaEventSupport.fireActivationCreated(AgendaEventSupport.java:58) at org.drools.core.phreak.PhreakRuleTerminalNode.doLeftTupleInsert(PhreakRuleTerminalNode.java:95) at org.drools.core.phreak.PhreakRuleTerminalNode.doLeftInserts(PhreakRuleTerminalNode.java:69) at org.drools.core.phreak.PhreakRuleTerminalNode.doNode(PhreakRuleTerminalNode.java:42) at org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:316) at org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:161) at org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:116) at org.drools.core.phreak.RuleExecutor.reEvaluateNetwork(RuleExecutor.java:225) at org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:98) at org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:988) at org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1274) at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1281) at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1254)