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https://issues.apache.org/jira/browse/QPID-2418?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Kennedy updated QPID-2418:
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Attachment: 0001-QPID-2418-trunk.patch
0001-QPID-2418-branch.patch
Revised patches. These do *not* fix this issue completely, since the
information stored regarding subscriptions on the client is per-session, and
should really be per-connection for behaviour to be consistent. In order not to
introduce such inconsistent behaviour, I have changed the code to throw a JMS
IllegalStateException on any attempt to re-create a subscription (with the same
paramaters) that already exists on the session, and unsubscribe if the
re-created subscription is a change to an existing open subscription on the
session, otherwise behaviour is unchanged. The code adds locking of the
subscription information and gets rid of duplicated code across protocol
versions, but a complete fix for this issue will require more extensive changes.
> 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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