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https://issues.apache.org/jira/browse/QPIDJMS-251?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Timothy Bish resolved QPIDJMS-251.
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Resolution: Fixed
> Thread unsafe use of MessageListener and state variable in JmsMessageConsumer
> -----------------------------------------------------------------------------
>
> Key: QPIDJMS-251
> URL: https://issues.apache.org/jira/browse/QPIDJMS-251
> Project: Qpid JMS
> Issue Type: Bug
> Components: qpid-jms-client
> Affects Versions: 0.11.1
> Reporter: Timothy Bish
> Assignee: Timothy Bish
> Fix For: 0.20.0
>
>
> The assignment of the MessageListener in the MessageConsumer class is done to
> a non-volatile value that can result in the initial run of the message
> dispatch thread missing the value and delay dispatch. Likewise the code uses
> a state variable to track started state but the value is not accessed in a
> thread safe way and the state can be missed. The started value is
> unnecessary as the internal message queue instance maintains a thread safe
> running state that can be used for the same information.
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