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https://issues.apache.org/jira/browse/AMQ-7439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17108870#comment-17108870
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ASF subversion and git services commented on AMQ-7439:
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Commit 5c94d7107a124d3f3a5c7090282e6eb213c8d0da in activemq's branch
refs/heads/activemq-5.15.x from Pascal Schumacher
[ https://gitbox.apache.org/repos/asf?p=activemq.git;h=5c94d71 ]
AMQ-7439: AbstractMQTTSocket#getProtocolConverter: Race condition in
double-checked locking object initialization
protocolConverter may be visible to other threads before its properties are set.
(cherry picked from commit 8fa772c8dee88e0e2ab499ad82f2d3932645b873)
> AbstractMQTTSocket#getProtocolConverter: Race condition in double-checked
> locking object initialization
> -------------------------------------------------------------------------------------------------------
>
> Key: AMQ-7439
> URL: https://issues.apache.org/jira/browse/AMQ-7439
> Project: ActiveMQ
> Issue Type: Bug
> Components: MQTT
> Affects Versions: 5.15.11
> Reporter: Pascal Schumacher
> Assignee: Jean-Baptiste Onofré
> Priority: Major
> Fix For: 5.16.0, 5.15.13
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> There is a race condition in AbstractMQTTSocket#getProtocolConverter.
> protocolConverter may be visible to other threads before its properties are
> set.
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