[jira] Commented: (MYFACES-2576) Race condition in _ExternalSpecifications methods

["Jakob Korherr (JIRA)" <de...@myfaces.apache.org>]

    [ https://issues.apache.org/jira/browse/MYFACES-2576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12837807#action_12837807 ] 

Jakob Korherr commented on MYFACES-2576:
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How would you be able to get a NullPointerException with the current state of _ExternalSpecifications? From my point of view the only thing which could happen is that the properties get configured more than once, which should not be a problem!

> Race condition in _ExternalSpecifications methods
> -------------------------------------------------
>
>                 Key: MYFACES-2576
>                 URL: https://issues.apache.org/jira/browse/MYFACES-2576
>             Project: MyFaces Core
>          Issue Type: Bug
>          Components: JSR-314
>    Affects Versions: 2.0.0-beta-2
>         Environment: *
>            Reporter: Jan-Kees van Andel
>
> The static final fields in the _ExternalSpecifications have recently been refactored into methods. But unfortunately, this has broken thread safety, possibly leading to strange errors (like NPE).
> I think the only solution with the current implementation is to make the methods synchronized. Volatile is not enough AFAICS...

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