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https://issues.apache.org/jira/browse/QPID-2418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12852046#action_12852046
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Rajith Attapattu commented on QPID-2418:
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Interesting, the queue declare with the new selector merely updates the the
selector on the queue?
The AMQP spec doesn't really define the behaviour if a queue declare is sent
with the same name but different args (in this case the selector).
So I wouldn't argue that the Java broker is wrong. The c++ client merely
ignores the queue declare.
IMO I think both brokers are wrong as this can lead to subtle errors that can
go undetected - but thats separate topic all together.
So on the C++ side, the queue is not deleted due to the java client bug.
So the message is there and gets sent to the client who now has a new selector
(with 0-10 client side selectors) which matches and the message is delivered.
Anyways once we fix the Java client to issue a queue this should be taken care
of.
Always a good idea to run the default java and c++ profiles before an update.
> Existing durable subscription with selector is not unsubscribed during
> change to new subscription
> --------------------------------------------------------------------------------------------------
>
> Key: QPID-2418
> URL: https://issues.apache.org/jira/browse/QPID-2418
> Project: Qpid
> Issue Type: Bug
> Components: Java Client
> Affects Versions: M4, 0.5, 0.6
> Reporter: Robbie Gemmell
> Assignee: Robbie Gemmell
> Fix For: 0.7
>
> Attachments: 0001-QPID-2418-branch.patch, 0001-QPID-2418-trunk.patch
>
>
> AMQSession.createDurableSubscriber(topic, name, messageSelector, noLocal)
> does not unsubscribe existing durable subscriptions. Whilst it does check for
> existing durable subscriptions in use by the client with the same name, it
> instead simply closes the subscriptions then creates a new one. As a result
> of not unsubscribing, the queue backing the subscription is not deleted
> before being used by the updated subscription as it should be (and as happens
> in the 0_8 and 0_10 subclasses when using durable subscriptions without
> selectors).
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