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From "Jeremy Bauer (JIRA)" <j...@apache.org>
Subject [jira] Updated: (OPENJPA-810) ArgumentException thrown during query compilation in multithreaded application
Date Tue, 02 Dec 2008 19:16:44 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-810?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jeremy Bauer updated OPENJPA-810:
---------------------------------

    Attachment: OPENJPA-810_trace.zip

Attaching surefire reports which include trace.

> ArgumentException thrown during query compilation in multithreaded application
> ------------------------------------------------------------------------------
>
>                 Key: OPENJPA-810
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-810
>             Project: OpenJPA
>          Issue Type: Bug
>    Affects Versions: 1.2.0
>            Reporter: Jeremy Bauer
>         Attachments: OPENJPA-810_trace.zip
>
>
> This problem was reported on the user mailing list by several users.   It appeared to
be an enhancement related problem similar to OPENJPA-234, but I was able to reproduce the
problem (using a test app provided by Yann [1] via direct email) with classes that were enhanced
with the PCEnhancer.  Based on the trace, it appears that the metadata repository is being
accessed concurrently by multiple threads and some persistent classes are not yet loaded while
threads attempt to access them.  The problem occurs more frequently when a) the persistent
class list is large and b) trace is enabled.
> [1] http://n2.nabble.com/ArgumentException-%28Incomplete-initialisation-of-EntityManager%29-tc1577196.html#none

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