[jira] [Commented] (DELTASPIKE-406) PersistenceUnits#instance sinngleton does not work in EAR scenarios

["Thomas Hug (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DELTASPIKE-406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13783877#comment-13783877 ] 

Thomas Hug commented on DELTASPIKE-406:
---------------------------------------

Added a warning to the README

> PersistenceUnits#instance sinngleton does not work in EAR  scenarios
> --------------------------------------------------------------------
>
>                 Key: DELTASPIKE-406
>                 URL: https://issues.apache.org/jira/browse/DELTASPIKE-406
>             Project: DeltaSpike
>          Issue Type: Bug
>          Components: Data-Module
>    Affects Versions: 0.5
>            Reporter: Mark Struberg
>            Assignee: Thomas Hug
>            Priority: Minor
>
> Currently the info regarding the various persistence.xml files on the classpath only gets scanned once and stored in the static PersistenceUnits#instance.
> This does not work in EAR scenarios if one of the persistence.xml is in a webapp or if the deltaspike-data-impl is on any other shared ClassLoader.
> We should at least document this restriction it until it's properly fixed.
> A possible fix would be to have a (weak) Map<ClassLoader, PersistenceInfo> which also looks up the parent ClassLodaer chain.



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