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From "Michael Dick (JIRA)" <>
Subject [jira] Commented: (OPENJPA-1808) Can NOT find meta class & can NOT insert record in the table
Date Tue, 21 Sep 2010 16:32:36 GMT


Michael Dick commented on OPENJPA-1808:


I think you need to generate the metamodel classes for your entities [1] (specifically the
Course entity), I don't see them included in the zip file you attached. 

The zip file was a bit confusing too, it's compressed using 7zip's algorithm - could you rename
the extension to .7z to indicate that? 

> Can NOT find meta class & can NOT insert record in the table
> ------------------------------------------------------------
>                 Key: OPENJPA-1808
>                 URL:
>             Project: OpenJPA
>          Issue Type: Bug
>    Affects Versions: 2.0.1
>         Environment: Windows 7,  Geronimo server
>            Reporter: LiWenQin
>         Attachments:
> Hi,
>     I wrote a jpa 2.0 test case.
>     In the entity class
>     @ElementCollection
>     @CollectionTable(name="COURSE_COMMENTS")
>     private List<Evaluation> evaluation;
>     Here member "evaluation" contains comments of the course in another Table:COURSE_COMMENT
>     I run it on Geronimo 3.0 server(Geronimo server uses openjpa to provide its jpa service),
howver, inserting record into the Table "COURSE" is NOT sucessful.
>     The server gives warning such like this:
>   WARN   [DefaultThreadPool 198] openjpa.MetaData - Meta class
>   "org.apache.geronimo.javaee6.jpa20.entities.Course_" for entity class org.apach
>  e.geronimo.javaee6.jpa20.entities.Course can not be registered with following ex
>  ception " java.lang.ClassNotFoundExcepti
>   on: org.apache.geronimo.javaee6.jpa20.entities.Course_"
>    Also can Not find meta class Evaluation_
>    I'm not sure whether it is a problem created by OpenJPA?
>     Could anyone help to have a look at it?
>     Thanks in advance!
> PS: I attached the code in the attachment.

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