[ https://issues.jboss.org/browse/DROOLS-634?page=com.atlassian.jira.plugin... ] Anantjot Anand commented on DROOLS-634: --------------------------------------- It happens that I am again dealing with this exception currently in 6.3.0.Final as well. However for me it happen for fisrt evaluation only and if i re-submit the same request no exception happen. Very wierd behavior. I plan to set null pointer check and see if it resolves it or move the exception somewhere else. Caused by: java.lang.NullPointerException at org.drools.core.reteoo.RuleTerminalNodeLeftTuple.getDeclarationIds(RuleTerminalNodeLeftTuple.java:394) at org.drools.core.audit.WorkingMemoryLogger.extractDeclarations(WorkingMemoryLogger.java:329) at org.drools.core.audit.WorkingMemoryLogger.matchCreated(WorkingMemoryLogger.java:273) at org.drools.core.event.AgendaEventSupport.fireActivationCreated(AgendaEventSupport.java:58) at org.drools.core.phreak.PhreakRuleTerminalNode.doLeftTupleInsert(PhreakRuleTerminalNode.java:110) at org.drools.core.phreak.PhreakRuleTerminalNode.doLeftInserts(PhreakRuleTerminalNode.java:84) at org.drools.core.phreak.PhreakRuleTerminalNode.doNode(PhreakRuleTerminalNode.java:57) at org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:318) at org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:166) at org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:123) at org.drools.core.phreak.RuleExecutor.reEvaluateNetwork(RuleExecutor.java:194) at org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:73) at org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:979) at org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1293) at org.drools.core.impl.StatefulKnowledgeSessionImpl.internalFireAllRules(StatefulKnowledgeSessionImpl.java:1294) at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1281) at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1260) at com.wellsfargo.ARGenT.Execution.RuleBase.processDataWithRules(RuleBase.java:1529) ... 10 more</stackTrace> -- This message was sent by Atlassian JIRA (v6.4.11#64026)