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Posted to dev@synapse.apache.org by "Udayanga Wickramasinghe (JIRA)" <ji...@apache.org> on 2012/08/15 12:06:38 UTC
[jira] [Resolved] (SYNAPSE-901) Concurrency issue at Clone Mediator
[ https://issues.apache.org/jira/browse/SYNAPSE-901?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Udayanga Wickramasinghe resolved SYNAPSE-901.
---------------------------------------------
Resolution: Fixed
committed in rev 1373302.Thanx Malith for your contribution..
> Concurrency issue at Clone Mediator
> -----------------------------------
>
> Key: SYNAPSE-901
> URL: https://issues.apache.org/jira/browse/SYNAPSE-901
> Project: Synapse
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.1
> Environment: Any
> Reporter: Malith Dhanushka
> Priority: Critical
> Fix For: FUTURE
>
> Attachments: SYNAPSE-901.patch
>
>
> This issue is very much identical to the issue SYNAPSE-897. Clone mediator gives following exception when messages are processed in parallel,
> [SynapseWorker-2] ERROR MediatorWorker Unexpected error executing task/async inject
> java.util.EmptyStackException
> at java.util.Stack.peek(Stack.java:85)
> at org.apache.synapse.util.xpath.SynapseXPathVariableContext.getVariableValue(SynapseXPathVariableContext.java:157)
> at org.jaxen.ContextSupport.getVariableValue(ContextSupport.java:215)
> at org.jaxen.Context.getVariableValue(Context.java:196)
> at org.jaxen.expr.DefaultVariableReferenceExpr.evaluate(DefaultVariableReferenceExpr.java:103)
> at org.jaxen.expr.DefaultXPathExpr.asList(DefaultXPathExpr.java:102)
> at org.jaxen.BaseXPath.selectNodesForContext(BaseXPath.java:677)
> at org.jaxen.BaseXPath.selectNodes(BaseXPath.java:216)
> at org.jaxen.BaseXPath.evaluate(BaseXPath.java:175)
> at org.apache.synapse.util.xpath.SynapseXPath.stringValueOf(SynapseXPath.java:172)
> at org.apache.synapse.mediators.transform.HeaderMediator.mediate(HeaderMediator.java:79)
> at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:60)
> at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:114)
> at org.apache.synapse.mediators.MediatorWorker.run(MediatorWorker.java:69)
> 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:662)
> Exception in thread "SynapseWorker-2" java.lang.NullPointerException
> at org.apache.synapse.FaultHandler.handleFault(FaultHandler.java:78)
> at org.apache.synapse.mediators.MediatorWorker.run(MediatorWorker.java:90)
> 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:662)
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