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https://issues.apache.org/jira/browse/SYNAPSE-339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ruwan Linton reassigned SYNAPSE-339:
------------------------------------
Assignee: Ruwan Linton
> ConcurrentModificationException thrown when trying out caching scenario if
> the number of messages exceeds the value specified as maxSize
> ----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SYNAPSE-339
> URL: https://issues.apache.org/jira/browse/SYNAPSE-339
> Project: Synapse
> Issue Type: Bug
> Affects Versions: 1.2-beta1
> Environment: Windows XP, JDK1.5.0_14
> Reporter: Evanthika Amarasiri
> Assignee: Ruwan Linton
>
> Steps to reproduce
> 1. The following configuration was tried out with the maxSize value set to 2
> *********************************************************************************************************************
> <definitions xmlns="http://ws.apache.org/ns/synapse";>
> <in>
> <cache timeout="30" scope="per-host" collector="false"
> hashGenerator="org.wso2.caching.digest.DOMHASHGenerator"
> maxMessageSize="1000">
> <implementation type="memory" maxSize="2"/>
> </cache>
> <send>
> <endpoint>
> <address
> uri="http://localhost:9000/soap/SimpleStockQuoteService"/>
> </endpoint>
> </send>
> </in>
> <out>
> <cache collector="true"/>
> <send/>
> </out>
> </definitions>
> *********************************************************************************************************************
> 2. Sent requests in the following order
> ant stockquote -Dtrpurl=http://localhost:8280/ -Dsymbol=MSFT
> ant stockquote -Dtrpurl=http://localhost:8280/ -Dsymbol=MSFT
> ant stockquote -Dtrpurl=http://localhost:8280/ -Dsymbol=IBM
> ant stockquote -Dtrpurl=http://localhost:8280/ -Dsymbol=IBM
> ant stockquote -Dtrpurl=http://localhost:8280/ -Dsymbol=SUN
> ant stockquote -Dtrpurl=http://localhost:8280/ -Dsymbol=SUN
> When I sent the 6th request above [ant stockquote
> -Dtrpurl=http://localhost:8280/ -Dsymbol=SUN] I get the following exception
> *******************************************************************************************************************************************************************************************
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> SynapseMessageReceiver Synapse received a new message for message mediation...
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> SynapseMessageReceiver Received To: /
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> SynapseMessageReceiver SOAPAction: urn:getQuote
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> SynapseMessageReceiver WSA-Action: urn:getQuote
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> Axis2SynapseEnvironment Injecting MessageContext
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> Axis2SynapseEnvironment Using Main Sequence for injected message
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> SequenceMediator Start : Sequence <main>
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> SequenceMediator Sequence <SequenceMediator> :: mediate()
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> InMediator Start : In mediator
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> InMediator Current message is incoming - executing child mediators
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> InMediator Sequence <InMediator> :: mediate()
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> CacheMediator Start : Cache mediator
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> CacheMediator Looking up cache at scope : per-host with ID : cacheManager
> 2008-06-03 15:20:32,750 [10.100.1.228-evanthika] [HttpServerWorker-14] DEBUG
> CacheMediator Generated request hash :
> 1-11146-56-99122-120-89-28-10059-9972-8186105
> Exception in thread "HttpServerWorker-14"
> java.util.ConcurrentModificationException
> at java.util.AbstractList$Itr.checkForComodification(Unknown Source)
> at java.util.AbstractList$Itr.next(Unknown Source)
> at
> org.wso2.caching.CacheManager.removeExpiredResponses(CacheManager.java:67)
> at
> org.apache.synapse.mediators.builtin.CacheMediator.processRequestMessage(CacheMediator.java:351)
> at
> org.apache.synapse.mediators.builtin.CacheMediator.mediate(CacheMediator.java:148)
> at
> org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:58)
> at
> org.apache.synapse.mediators.filters.InMediator.mediate(InMediator.java:60)
> at
> org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:58)
> at
> org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:125)
> at
> org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:176)
> at
> org.apache.synapse.core.axis2.SynapseMessageReceiver.receive(SynapseMessageReceiver.java:89)
> at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:176)
> at
> org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275)
> at
> org.apache.synapse.transport.nhttp.ServerWorker.processPost(ServerWorker.java:238)
> at
> org.apache.synapse.transport.nhttp.ServerWorker.run(ServerWorker.java:194)
> at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown
> Source)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
> at java.lang.Thread.run(Unknown Source)
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