[jboss-jira] [JBoss JIRA] (JBRULES-3573) Concurrency related exceptions when using entry-points and sliding windows

Concurrency related exceptions when using entry-points and sliding windows -------------------------------------------------------------------------- Key: JBRULES-3573 URL: https://issues.jboss.org/browse/JBRULES-3573 Project: Drools Issue Type: Bug Security Level: Public(Everyone can see) Components: drools-compiler, drools-core Affects Versions: 5.4.0.Final Reporter: Edson Tirelli Assignee: Edson Tirelli Fix For: 5.4.1.Final, 5.5.0.Beta1 There are several concurrency related exceptions being raised when using multiple threads, entry-points and sliding windows in 5.4.x+. E.g.: org.drools.RuntimeDroolsException: Unexpected exception executing action org.drools.reteoo.PropagationQueuingNode$PropagateAction@4de8b671 at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:979) at org.drools.common.DefaultAgenda.fireUntilHalt(DefaultAgenda.java:1423) at org.drools.common.AbstractWorkingMemory.fireUntilHalt(AbstractWorkingMemory.java:755) at org.drools.common.AbstractWorkingMemory.fireUntilHalt(AbstractWorkingMemory.java:731) at org.drools.impl.StatefulKnowledgeSessionImpl.fireUntilHalt(StatefulKnowledgeSessionImpl.java:247) at org.drools.integrationtests.MultithreadTest$4.call(MultithreadTest.java:169) at org.drools.integrationtests.MultithreadTest$4.call(MultithreadTest.java:1) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:679) Caused by: java.util.NoSuchElementException at java.util.LinkedList.remove(LinkedList.java:805) at java.util.LinkedList.removeFirst(LinkedList.java:151) at org.drools.common.PropagationContextImpl.evaluateActionQueue(PropagationContextImpl.java:344) at org.drools.reteoo.PropagationQueuingNode$AssertAction.execute(PropagationQueuingNode.java:404) at org.drools.reteoo.PropagationQueuingNode.propagateActions(PropagationQueuingNode.java:280) at org.drools.reteoo.PropagationQueuingNode$PropagateAction.execute(PropagationQueuingNode.java:563) at org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:977) ... 14 more