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https://issues.apache.org/jira/browse/OPENJPA-174?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Abe White resolved OPENJPA-174.
-------------------------------
Resolution: Fixed
Fix Version/s: 0.9.7
Only affected abstract base types with a single String id field. Fixed in SVN
revision 520117. Added test case in
org.apache.openjpa.persistence.inheritance.TestFindAbstractClass.
> error when find()'ing an abstract class
> ---------------------------------------
>
> Key: OPENJPA-174
> URL: https://issues.apache.org/jira/browse/OPENJPA-174
> Project: OpenJPA
> Issue Type: Bug
> Affects Versions: 0.9.6
> Environment: Java SE 5
> Derby
> Reporter: Jeffrey Blatttman
> Fix For: 0.9.7
>
> Attachments: abstracttest.zip, pom.zip
>
>
> class B extends A
> A is abstract
> B is concrete
> i have persisted an instance of B. now i try:
> A a = em.find(A.class, anId);
> openjpa fails with:
> ... Cannot create new application identity instance for abstract class
> "class A"
> if i change the find to:
> A a = em.find(B.class, anId);
> openjpa works okay.
> note that i have two test cases. one is my real model, and one is the simple
> A and B class example above. my real model fails, where the simple A, B class
> example works as expected. so, it's is either a side affect of some other
> issue, or there is something wrong in my model and the error message is
> misleading or lacking information.
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