Keith Wall created QPID-7774:
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Summary: [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: qpid-java-6.1.2, qpid-java-6.0.6, 0.32, 0.22
Reporter: Keith Wall
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, 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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