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https://issues.apache.org/activemq/browse/AMQ-2775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bruce Snyder updated AMQ-2775:
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Fix Version/s: 5.5.0
(was: 5.4.1)
> Race condition in org.apache.activemq.util.osgi.Activator
> ---------------------------------------------------------
>
> Key: AMQ-2775
> URL: https://issues.apache.org/activemq/browse/AMQ-2775
> Project: ActiveMQ
> Issue Type: Bug
> Affects Versions: 5.3.2
> Reporter: Michael Pilquist
> Fix For: 5.5.0
>
>
> There's a race condition between start and create methods of Activator. If a
> bundle that was started before activemq-core does something that causes a
> call to Activator.create, and Activator.start is still scanning bundles for
> contributed service files, an IOException results.
> In practice, this occurred after upgrading from 5.3.0 to 5.3.2 because
> another bundle at the same start level as activemq-core programmatically
> instantiated a broker from a different thread. The activemq-core activator
> was still scanning the installed bundles and hadn't gotten to itself yet, so
> the result was a failure to instantiate the tcp handler.
> Making start/create/stop synchronized would fix this issue.
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