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Date: Fri, 12 Feb 2010 20:18:28 +0000 (UTC)
From: "B.J. Reed (JIRA)" <jira@apache.org>
To: dev@openjpa.apache.org
Subject: [jira] Updated: (OPENJPA-1508) ArrayIndexOutOfBoundsException being
 thrown from ClassMetaData.getExtraFieldDataIndex()
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     [ https://issues.apache.org/jira/browse/OPENJPA-1508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

B.J. Reed updated OPENJPA-1508:
-------------------------------

    Attachment: tc.zip

has the test case to demonstrate the exception.

> ArrayIndexOutOfBoundsException being thrown from ClassMetaData.getExtraFieldDataIndex()
> ---------------------------------------------------------------------------------------
>
>                 Key: OPENJPA-1508
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1508
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jdbc
>    Affects Versions: 1.2.2
>         Environment: found this on DB2, but I imagine it doesn't matter
>            Reporter: B.J. Reed
>             Fix For: 1.2.3, 1.3.0, 2.0.1, 2.1.0
>
>         Attachments: tc.zip
>
>
> An ArrayIndexOutOfBoundsException is being thrown by ClassMetaData.getExtraFieldDataIndex()
> I am providing a test case.  The only thing special is that the entities are set up in a hexagon shape, where the entities above have a OneToMany relationship with those below.  The one at the very bottom has ManyToOne relationships with the two entities above it and I think this seems to be the cause of the problem.
> I have done some debugging on this and here is where I have gotten to:
> The problem is somewhere around the JDBCStoreManager.initializeState method
> first time through, the mapping object is org.apache.openjpa.persistence.jdbc.query.HexagonBottom and the mappedByFieldMapping is 
> org.apache.openjpa.persistence.jdbc.query.HexagonBottom.lowerLeftId  (looks good), index is 6
> second time through, the mapping object is org.apache.openjpa.persistence.jdbc.query.HexagonLowerRight  and the mappedByFieldMapping is still org.apache.openjpa.persistence.jdbc.query.HexagonBottom.lowerLeftId, so the index is still 6, but the HexagonLowerRight object only has 4 fields in it so the exception is thrown.

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