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From "Raul Kripalani (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (CAMEL-5465) JMS Reply Managers should remove correlation earlier
Date Thu, 09 Aug 2012 16:09:19 GMT

     [ https://issues.apache.org/jira/browse/CAMEL-5465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Raul Kripalani resolved CAMEL-5465.
-----------------------------------

    Resolution: Duplicate
    
> JMS Reply Managers should remove correlation earlier
> ----------------------------------------------------
>
>                 Key: CAMEL-5465
>                 URL: https://issues.apache.org/jira/browse/CAMEL-5465
>             Project: Camel
>          Issue Type: Bug
>          Components: camel-activemq, camel-jms
>    Affects Versions: 2.8.6, 2.9.2
>            Reporter: Raul Kripalani
>            Assignee: Raul Kripalani
>             Fix For: 2.9.3, 2.10.0
>
>
> When handling synchronous invocations, both JMS reply managers {{TemporaryQueueReplyManager}}
and {{PersistentQueueReplyManager}} remove the correlation too late.
> {{ReplyManager.handleReplyMessage}} handles the reply triggering the continuation of
the remaining route logic, which may as well contain yet another JMS invocation to exactly
the same destination, e.g.:
> {code}
> <route>
>   <from uri="direct:hello" />
>   <inOut uri="activemq:queue:test" />
>   <inOut uri="activemq:queue:test" />
> </route>
> {code}
> As a result, the correlation is not removed from the CorrelationMap until the asynchronous
dispatch to the second endpoint has finished and the stack unwinds.
> What's worse is that, due to Camel's re-use of endpoints, both producers are represented
as exactly the same Endpoint instance, sharing *the same ReplyManager and CorrelationMap*.
> So during the dispatch to the second endpoint, the correlation is overwritten in the
CorrelationMap but, immediately after, the first endpoint removes the correlation anyway!
> Since correlation ID are dragged on (see CAMEL-5390), the route will fail, providing
a bad out-of-box experience for such a simple use case.

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