Edson Tirelli created JBRULES-3573:
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Summary: 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
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