[jboss-jira] [JBoss JIRA] (WFCORE-3948) Potential race condition on deployment of EAR when Class-Path manifest entry is in use

[Brian Stansberry (Jira)]

     [ https://issues.redhat.com/browse/WFCORE-3948?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Brian Stansberry reopened WFCORE-3948:
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I'll revert the CopyOnWriteArrayList and use a synchronized approach. The one DUP that needs to iterate while concurrent writes might be happening will synchronize on the list.

> Potential race condition on deployment of EAR when Class-Path manifest entry is in use
> --------------------------------------------------------------------------------------
>
>                 Key: WFCORE-3948
>                 URL: https://issues.redhat.com/browse/WFCORE-3948
>             Project: WildFly Core
>          Issue Type: Bug
>          Components: Server
>            Reporter: Stuart Douglas
>            Assignee: Brian Stansberry
>            Priority: Major
>             Fix For: 11.0.0.Beta4
>
>
> Attachments#ADDITIONAL_MODULES is attached to the top level DU, but modified by sub deployments in ManifestClassPathProcessor#createAdditionalModule without any sort of synchronisation. This can result in ConcurrentModificationException when the list is read/written to by other sub deployments at the same time.



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