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https://issues.apache.org/jira/browse/AMQ-6188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15169765#comment-15169765
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Brian D. Johnson commented on AMQ-6188:
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Updated commit to remove sleep and assert canGC is false following message send.
> Queues containing PERSISTENT messages can be garbage collected due to
> Inactivity
> --------------------------------------------------------------------------------
>
> Key: AMQ-6188
> URL: https://issues.apache.org/jira/browse/AMQ-6188
> Project: ActiveMQ
> Issue Type: Bug
> Components: Broker
> Affects Versions: 5.13.0, 5.13.1
> Reporter: Brian D. Johnson
>
> It is possible for a queue to be garbage collected due to inactivity despite
> undelivered {{PERSISTENT}} messages being present on the queue.
> Order of events-
> * unused queue is marked for garbage collection due to inactivity
> * prior to garbage collection, an anonymous producer comes online, sending
> one or more messages, then closing
> ** Note: the queue's {{lastActiveTime}} is not reset when an anonymous
> producer is created because they are not bound to a destination at creation.
> * queue with pending Message(s) is garbage collected
> A simple fix for this seems to be resetting
> {{BaseDestination#lastActiveTime}} to zero each time a message is sent
> ({{BaseDestination#messageDelivered(context, messageReference)}}).
> I'll submit a PR with a patch shortly.
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