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https://issues.apache.org/jira/browse/ARTEMIS-1262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16068873#comment-16068873
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clebert suconic commented on ARTEMIS-1262:
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There's no way to comply with both statements.. separate subscription.. on
which case you keep it separate.. and throw an exception in case of a same
name...
The spec is confusing here.. I think we should ignore it... the risk of any
issues is low anyways...
If you really want to fix it.. we would need to change the name with a suffix
such as .durable.. shared... and some convoluted checks if the version is
applied or not.. that is.. the fix gets more dangerous than what we have in
place now.
> JMS 2.0 durable subscription spec violation
> -------------------------------------------
>
> Key: ARTEMIS-1262
> URL: https://issues.apache.org/jira/browse/ARTEMIS-1262
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker
> Affects Versions: 2.1.0
> Reporter: Christopher L. Shannon
>
> There is a JMS 2.0 spec violation with Artemis. Currently it is possible to
> first create a durable subscription with a clientId and subscription name and
> then also create a shared durable subscription using the same clientId and
> subscription name. This works because Artemis isn't distinguishing between
> the two types of consumers during the creation of the consumer. However, the
> spec says:
> {quote}A shared durable subscription and an unshared durable subscription may
> not
> have the same name and client identifier. If the application calls one of the
> createSharedDurableConsumer methods, and an unshared durable
> subscription already exists with the same name and client identifier, then a
> JMSException or JMSRuntimeException is thrown.{quote}
> I think that there may need to be a flag added somewhere during the creation
> of the consumer so the broker can tell whether or not the durable
> subscription is shared vs non-shared so it can reject a shared subscription
> attempt if a non-shared subscription exists for the same client Id and name.
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