[jboss-jira] [JBoss JIRA] (DROOLS-202) RuntimeDroolsException appears randomly

RuntimeDroolsException appears randomly --------------------------------------- Key: DROOLS-202 URL: https://issues.jboss.org/browse/DROOLS-202 Project: Drools Issue Type: Bug Security Level: Public(Everyone can see) Affects Versions: 5.5.0.Final Environment: JBoos 5.4 Linux Ubuntu JDK 1.6 Reporter: Nedo Nedic Assignee: Mark Proctor Labels: Drools From time to time I see that the following exception is thrown when inserting facts into working memory. Full stack trace: org.drools.RuntimeDroolsException: Unexpected exception executing action org.drools.rule.SlidingTimeWindow$BehaviorExpireWMAction@5f86946e at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:979) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:322) at org.drools.common.NamedEntryPoint.insert(NamedEntryPoint.java:298) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:888) at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:847) at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:269) at com.comp.impl.AbstractCorrelator.insertFact(AbstractCorrelator.java:297) at com.comp.impl.TemporalCorrelatorServiceImpl.insertFact(TemporalCorrelatorServiceImpl.java:72) at com.comp.impl.AbstractCorrelator.processMessage(AbstractCorrelator.java:467) at com.comp.jms.JmsMessageListenerImpl.onMessage(JmsMessageListenerImpl.java:75) at org.apache.activemq.ActiveMQMessageConsumer.dispatch(ActiveMQMessageConsumer.java:1088) at org.apache.activemq.ActiveMQSessionExecutor.dispatch(ActiveMQSessionExecutor.java:127) at org.apache.activemq.ActiveMQSessionExecutor.iterate(ActiveMQSessionExecutor.java:197) at org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:122) at org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:43) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:619) Caused by: java.lang.NullPointerException at org.drools.core.util.RightTupleIndexHashTable.remove(RightTupleIndexHashTable.java:372) at org.drools.reteoo.AccumulateNode.retractRightTuple(AccumulateNode.java:318) at org.drools.rule.SlidingTimeWindow.expireFacts(SlidingTimeWindow.java:185) at org.drools.rule.SlidingTimeWindow$BehaviorExpireWMAction.execute(SlidingTimeWindow.java:479) at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:977) ... 17 more