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https://issues.apache.org/jira/browse/QPID-7774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16006601#comment-16006601
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ASF subversion and git services commented on QPID-7774:
-------------------------------------------------------
Commit 948c341da7cf4a46ba62ea8ddebb711a4a636dc4 in qpid-jms-amqp-0-x's branch
refs/heads/master from [~k-wall]
[ https://git-wip-us.apache.org/repos/asf?p=qpid-jms-amqp-0-x.git;h=948c341 ]
QPID-7774: [AMQP 0-8..0-91] Ensure failover latch is nulled on all paths
following a successful failover
> [Qpid JMS Client 0-x] [0-8..0-91] MessageConsumer#receiveNoWait() always
> returns null after a successful failover
> -----------------------------------------------------------------------------------------------------------------
>
> Key: QPID-7774
> URL: https://issues.apache.org/jira/browse/QPID-7774
> Project: Qpid
> Issue Type: Bug
> Components: Java Client
> Affects Versions: 0.22, 0.32, qpid-java-6.0.6, qpid-java-6.1.2
> Reporter: Keith Wall
> Fix For: qpid-java-client-0-x-6.3.0, qpid-java-6.1.3
>
>
> If the client fails over when AMQP 0-8..0-91 is in use and the application is
> using a synchronous message receiver calling #receiveNoWait(), the
> application will always receive null. The defect is longstanding. It goes
> back at least until 0.22. Other synchronous receive calls and asynchronous
> message listeners are unaffected. The 0-10 path is unaffected too.
> The problem is {{org.apache.qpid.client.AMQConnection#isFailingOver}} and
> org.apache.qpid.client.AMQProtocolHandler#startFailoverThread. The former
> assumes that the failover latch will be nullified after a successful failover
> but {{startFailoverThread}} does not organise for this.
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