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https://issues.apache.org/jira/browse/ARTEMIS-1262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16069876#comment-16069876
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Christopher L. Shannon commented on ARTEMIS-1262:
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Alright, thanks for the feedback, I'll play around with it a bit and will
create a PR for it. I think you are right that the queue name is probably the
best way to go instead of a protocol change. So somewhere on the server the
check would have to be done to make sure the durables are following the spec
and return an error to the client if the queue creation is invalid. Under the
old model it would make sense to put this logic into the JMSServerManager but
that is deprecated. So will need to figure out where to put this without
enforcing it on other protocols that don't have this restriction.
> 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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