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From "Michael Dick (JIRA)" <>
Subject [jira] Resolved: (OPENJPA-386) org.apache.openjpa.meta.ClassMetaData.validateAppIdClass() does not take @MappedSuperclass into account
Date Thu, 27 Aug 2009 20:07:59 GMT


Michael Dick resolved OPENJPA-386.

       Resolution: Fixed
    Fix Version/s: 2.0.0

Thanks for the patch Jody. Patch applied to 1.3.x, and trunk. 

> org.apache.openjpa.meta.ClassMetaData.validateAppIdClass() does not take @MappedSuperclass
into account
> -------------------------------------------------------------------------------------------------------
>                 Key: OPENJPA-386
>                 URL:
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: kernel
>    Affects Versions: 0.9.7, 1.0.0, 1.0.2
>         Environment: BEA WebLogic 10.0 under Windows XP SP1
>            Reporter: Matthew L. Schwickerath
>            Assignee: Jody Grassel
>             Fix For: 1.3.0, 2.0.0
>         Attachments: OPENJPA-386_1.0.x.patch, OPENJPA-386_1.1.x.patch, OPENJPA-386_1.2.x.patch,
OPENJPA-386_1.3.x.patch, OPENJPA-386_trunk.patch
> We have a @MappedSuperclass that is the base for all of our entity bean classes.  This
class contains the @Version (and @Column for the version field) that all of our entity beans
use.  But, in ClassMetaData.validateAppIdClass(), if an entity bean class has a superclass,
and the entity bean has an @IdClass, it expects that superclass to have an @IdClass also.
 All of our entity beans have an @IdClass (even if they only have a single part key), but
our @MappedSuperclass does not have an @IdClass.  This scenario works under JBoss 4.2.0 and
Sun AS 9, but produces a NullPointerException in OpenJPA at:
>         if (_super != null) {
>             // concrete superclass oids must match or be parent of ours
>             ClassMetaData sup = getPCSuperclassMetaData();
>             if (!sup.getObjectIdType().isAssignableFrom(_objectId))  // <--- NullPointerException

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