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From "Rick Curtis (JIRA)" <j...@apache.org>
Subject [jira] Closed: (OPENJPA-1350) Race condition in the MetaDataRepository
Date Thu, 25 Feb 2010 21:08:28 GMT

     [ https://issues.apache.org/jira/browse/OPENJPA-1350?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rick Curtis closed OPENJPA-1350.
--------------------------------


> Race condition in the MetaDataRepository
> ----------------------------------------
>
>                 Key: OPENJPA-1350
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1350
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: kernel
>    Affects Versions: 1.0.3, 1.2.1, 2.0.0-M3
>            Reporter: Rick Curtis
>            Assignee: Rick Curtis
>             Fix For: 1.2.3, 2.0.0
>
>         Attachments: OJ1350_1.0.x.patch, OPENJPA-1350-1.2.x.patch, OPENJPA-1350-1.2.x.patch
>
>
> There is a race condition in the MetaDataRepository where if multiple threads try to
get MetaData for the same alias, one or more of the threads can get incorrect data. This can
only occur on the first (few) thread(s). After init is complete, the problem does not occur.
> The error that is observed is the following:
> <openjpa-2.0.0-SNAPSHOT-r422266:824454M fatal user error> org.apache.openjpa.util.MetaDataException:
Could not locate metadata for the class using alias "MdrTestEntity". Perhap
> s you meant MdrTestEntity, which is a close match. This could mean that you have mis-spelled
the alias, or that OpenJPA failed to properly load the metadata for the type whose
> alias is "MdrTestEntity". Registered alias mappings: "{MdrTestEntity=[class org.apache.openjpa.persistence.meta.MdrTestEntity]}"

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