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Posted to dev@openjpa.apache.org by "Michael Dick (JIRA)" <ji...@apache.org> on 2010/09/21 18:32:36 UTC

[jira] Commented: (OPENJPA-1808) Can NOT find meta class & can NOT insert record in the table

    [ https://issues.apache.org/jira/browse/OPENJPA-1808?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12913066#action_12913066 ] 

Michael Dick commented on OPENJPA-1808:
---------------------------------------

Hi, 

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. 
 [1] http://openjpa.apache.org/builds/latest/docs/manual/manual.html#d0e11094

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: https://issues.apache.org/jira/browse/OPENJPA-1808
>             Project: OpenJPA
>          Issue Type: Bug
>    Affects Versions: 2.0.1
>         Environment: Windows 7,  Geronimo server
>            Reporter: LiWenQin
>         Attachments: jpa2.0.zip
>
>
> Hi,
>     I wrote a jpa 2.0 test case.
>     In the entity class Course.java:
>     @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.security.PrivilegedActionException: 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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