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Posted to dev@synapse.apache.org by "Malith Dhanushka (JIRA)" <ji...@apache.org> on 2012/07/30 21:57:34 UTC

[jira] [Created] (SYNAPSE-897) Concurrency issue at Iterate Mediator

Malith Dhanushka created SYNAPSE-897:
----------------------------------------

             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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[jira] [Commented] (SYNAPSE-897) Concurrency issue at Iterate Mediator

Posted by "Udayanga Wickramasinghe (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/SYNAPSE-897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13434925#comment-13434925 ] 

Udayanga Wickramasinghe commented on SYNAPSE-897:
-------------------------------------------------

committed in rev 1373302.Thanx Malith for your contribution..
                
> 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
>
>         Attachments: SYNAPSE-897.patch
>
>
> 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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[jira] [Commented] (SYNAPSE-897) Concurrency issue at Iterate Mediator

Posted by "Hudson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/SYNAPSE-897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13434983#comment-13434983 ] 

Hudson commented on SYNAPSE-897:
--------------------------------

Integrated in Synapse - Trunk #4385 (See [https://builds.apache.org/job/Synapse%20-%20Trunk/4385/])
    commiting patches SYNAPSE-898,SYNAPSE-884, SYNAPSE-897 SYNAPSE-899, SYNAPSE-901 (Revision 1373302)

     Result = SUCCESS
uswick : 
Files : 
* /synapse/trunk/java/modules/core/pom.xml
* /synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/config/xml/CloneMediatorFactory.java
* /synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/config/xml/IterateMediatorFactory.java
* /synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/config/xml/IterateMediatorSerializer.java
* /synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/config/xml/TemplateMediatorFactory.java
* /synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/config/xml/TemplateMediatorSerializer.java
* /synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/config/xml/TemplateParameterFactory.java
* /synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/config/xml/TemplateParameterSerializer.java
* /synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/libraries/util/LibDeployerUtils.java
* /synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/mediators/TemplateParameter.java
* /synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/mediators/template/TemplateContext.java
* /synapse/trunk/java/modules/core/src/main/java/org/apache/synapse/mediators/template/TemplateMediator.java
* /synapse/trunk/java/modules/core/src/test/java/org/apache/synapse/libraries/eip
* /synapse/trunk/java/modules/core/src/test/java/org/apache/synapse/libraries/eip/AbstractEipLibTestCase.java
* /synapse/trunk/java/modules/core/src/test/java/org/apache/synapse/libraries/eip/EipLibTest.java
* /synapse/trunk/java/modules/core/src/test/resources/synapse-libraries/assembly/assemble-eip-lib.xml
* /synapse/trunk/java/modules/core/src/test/resources/synapse-libraries/synapse-eip-lib
* /synapse/trunk/java/modules/core/src/test/resources/synapse-libraries/synapse-eip-lib/artifacts.xml
* /synapse/trunk/java/modules/core/src/test/resources/synapse-libraries/synapse-eip-lib/eip_systemManagement
* /synapse/trunk/java/modules/core/src/test/resources/synapse-libraries/synapse-eip-lib/eip_systemManagement/artifact.xml
* /synapse/trunk/java/modules/core/src/test/resources/synapse-libraries/synapse-eip-lib/eip_systemManagement/template_splitter.xml
* /synapse/trunk/java/repository/conf/sample/synapse_sample_850.xml
* /synapse/trunk/java/repository/conf/sample/synapse_sample_851.xml
* /synapse/trunk/java/repository/conf/sample/synapse_sample_852.xml
* /synapse/trunk/java/repository/conf/sample/synapse_sample_853.xml
* /synapse/trunk/java/repository/conf/sample/synapse_sample_854.xml
* /synapse/trunk/java/repository/conf/sample/synapse_sample_855.xml
* /synapse/trunk/java/repository/conf/sample/synapse_sample_856.xml
* /synapse/trunk/java/repository/conf/sample/synapse_sample_857.xml

                
> 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
>
>         Attachments: SYNAPSE-897.patch
>
>
> 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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[jira] [Updated] (SYNAPSE-897) Concurrency issue at Iterate Mediator

Posted by "Malith Dhanushka (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/SYNAPSE-897?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Malith Dhanushka updated SYNAPSE-897:
-------------------------------------

    Attachment: SYNAPSE-897.patch

Attaching patch.Please review & commit. 

Thanks, 
Malith
                
> 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
>
>         Attachments: SYNAPSE-897.patch
>
>
> 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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