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https://issues.apache.org/jira/browse/ARTEMIS-2093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16623646#comment-16623646
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ASF subversion and git services commented on ARTEMIS-2093:
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Commit 3112b4f3db6a77b3d996d72bac65d539d1135ce8 in activemq-artemis's branch
refs/heads/master from [[email protected]]
[ https://git-wip-us.apache.org/repos/asf?p=activemq-artemis.git;h=3112b4f ]
ARTEMIS-2093 NPE thrown by NettyConnector::createConnection
Given that NettyConnector::createConnection isn't happening on the
channel's event loop, it could race with a channel close event, that
would clean the whole channel pipeline, leading to a NPE while
trying to use a configured channel handler of the pipeline.
> NPE thrown by NettyConnector::createConnection
> ----------------------------------------------
>
> Key: ARTEMIS-2093
> URL: https://issues.apache.org/jira/browse/ARTEMIS-2093
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker
> Affects Versions: 2.6.3
> Reporter: Francesco Nigro
> Assignee: Francesco Nigro
> Priority: Minor
> Fix For: 2.7.0, 2.6.4
>
>
> On NettyConnector::createConnection,
> ChannelPipeline::get(ActiveMQChannelHandler.class) can return null, causing
> NPE, if the channel is being closed and/or the channel pipeline is being
> cleaned up before it.
> It can happen because NettyConnector::createConnection is not being called
> inside the channel's event loop and is concurrent with a channel close event
> (that's completed into the event loop).
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