[jira] Commented: (OPENJPA-1824) OpenBooks should used container managed persistence when deployed in an application server.

["Jeremy Bauer (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OPENJPA-1824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12923506#action_12923506 ] 

Jeremy Bauer commented on OPENJPA-1824:
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I think introducing an EJB into the sample would limit its use to only JEE environments with an EJB container.  Since all you really need is a way to inject an emf, you might be able to accomplish that by introducing a dispatcher servlet or a listener into the app.  That would only require inclusion of the Geronimo servlet API into the build, instead of the EJB and potentially other libraries.

> OpenBooks should used container managed persistence when deployed in an application server.
> -------------------------------------------------------------------------------------------
>
>                 Key: OPENJPA-1824
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1824
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: samples
>    Affects Versions: 2.0.1
>         Environment: Windows Sever 2003
>            Reporter: Rohit Dilip Kelapure
>            Priority: Minor
>
> OpenBooks is using an app managed persistence context and it isn't cleaning up properly. openbook.server.ServiceFactory.getService(...) creates an EMF, but it is never closed.
> OpenBooks application is using an app managed persistence context which is NOT cleaned up correctly when deployed in a JEE server.
> This results in the JEE container JPA Runtime does NOT calling DataCacheManager.close() on the DataCacheManager plugin.
> The container JPA Runtime does NOT call openjpa.DataCacheManager.close() when the application is stopped.
> This does not give a chance to any OpenJPA L2 cache provider to cleanup their resources and remove cache instances from static hashmaps. utlimately resulting in a memory leak.

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