Malith Dhanushka created SYNAPSE-897:
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Summary: Concurrency issue at Iterate Mediator
Key: SYNAPSE-897
URL: https://issues.apache.org/jira/browse/SYNAPSE-897
Project: Synapse
Issue Type: Bug
Components: Core
Affects Versions: 2.1
Environment: Any
Reporter: Malith Dhanushka
Fix For: FUTURE
Iterate mediator randomly generates following exception,
[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:176)
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)
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