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https://issues.apache.org/jira/browse/ARTEMIS-1262?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16068743#comment-16068743
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Christopher L. Shannon commented on ARTEMIS-1262:
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Here is a test I added to the existing JMS 2.0 tests that show the violation:
https://github.com/cshannon/activemq-artemis/commit/e78d7b7bf3bb7619b67aeac53b6e924087a64c0d
> 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 the 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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