[jboss-jira] [JBoss JIRA] Created: (JBRULES-2865) Drools Flow execution with single RuleSet node (besides Start and Stop nodes) results with no ruleset rules execution and java.lang.OutOfMemoryError.

[Marek B (JIRA)]

Drools Flow execution with single RuleSet node (besides Start and Stop nodes) results with no ruleset rules execution and java.lang.OutOfMemoryError.
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                 Key: JBRULES-2865
                 URL: https://issues.jboss.org/browse/JBRULES-2865
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-core (flow)
    Affects Versions: 5.1.1.FINAL, 5.1.0.FINAL
         Environment: all
            Reporter: Marek B
            Assignee: Mark Proctor


Trying to invoke drools flow with single RuleSet element only (besides Start/Stop elems) results in java.lang.OutOfMemoryError: GC overhead limit exceeded.
Also this bug affects probably all flows, with RuleSet element as first in execution flow.
See stacktrace

 Exception in thread "Worker#xxx.xxxxxx.xxx(3)" java.lang.OutOfMemoryError: GC overhead limit exceeded
        at java.util.Arrays.copyOf(Arrays.java:2746)
        at java.util.concurrent.CopyOnWriteArrayList.add(CopyOnWriteArrayList.java:420)
        at org.drools.process.instance.event.DefaultSignalManager.addEventListener(DefaultSignalManager.java:57)
        at org.drools.workflow.instance.impl.WorkflowProcessInstanceImpl.addEventListener(WorkflowProcessInstanceImpl.java:377)
        at org.drools.workflow.instance.node.RuleSetNodeInstance.addRuleSetListener(RuleSetNodeInstance.java:55)
        at org.drools.workflow.instance.node.RuleSetNodeInstance.internalTrigger(RuleSetNodeInstance.java:41)
        at org.drools.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:117)
        at org.drools.workflow.instance.impl.NodeInstanceImpl.triggerConnection(NodeInstanceImpl.java:178)
        at org.drools.workflow.instance.impl.NodeInstanceImpl.triggerCompleted(NodeInstanceImpl.java:144)
        at org.drools.workflow.instance.node.StartNodeInstance.triggerCompleted(StartNodeInstance.java:49)
        at org.drools.workflow.instance.node.StartNodeInstance.internalTrigger(StartNodeInstance.java:41)
        at org.drools.workflow.instance.impl.NodeInstanceImpl.trigger(NodeInstanceImpl.java:117)
        at org.drools.ruleflow.instance.RuleFlowProcessInstance.internalStart(RuleFlowProcessInstance.java:32)
        at org.drools.process.instance.impl.ProcessInstanceImpl.start(ProcessInstanceImpl.java:192)
        at org.drools.workflow.instance.impl.WorkflowProcessInstanceImpl.start(WorkflowProcessInstanceImpl.java:309)
        at org.drools.common.AbstractWorkingMemory.startProcess(AbstractWorkingMemory.java:1644)
        at org.drools.impl.StatefulKnowledgeSessionImpl.startProcess(StatefulKnowledgeSessionImpl.java:306)


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