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https://issues.apache.org/jira/browse/QPID-4673?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13615794#comment-13615794
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Justin Ross commented on QPID-4673:
-----------------------------------
Isolated to 1.0 protocol module. Approved for 0.22.
> [Java Broker AMQP 1.0] Potential for deadlock when draining AMQP 1.0
> subscriptions
> ----------------------------------------------------------------------------------
>
> Key: QPID-4673
> URL: https://issues.apache.org/jira/browse/QPID-4673
> Project: Qpid
> Issue Type: Bug
> Components: Java Broker
> Affects Versions: 0.20
> Reporter: Rob Godfrey
> Assignee: Rob Godfrey
> Fix For: 0.21
>
>
> There is a potential for deadlock between the locks on the connection
> endpoint and the subscription object in the java broker when running in the
> AMQP 1.0 codepath. Instead of locking the subscription object the methods
> should instead take the lock from the link (which is the same as the
> connection endpoint lock).
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