[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-6953) Envers: ManyToOne association returns null for audited entities when insertable/updatable=false

[Steffen Ryll (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-6953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=45041#comment-45041 ] 

Steffen Ryll commented on HHH-6953:
-----------------------------------

The attachment contains a simple Eclipse JPA project with one JUnit test case, but running "mvn test" does the trick as well.

> Envers: ManyToOne association returns null for audited entities when insertable/updatable=false
> -----------------------------------------------------------------------------------------------
>
>                 Key: HHH-6953
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-6953
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: envers
>    Affects Versions: 4.0.0.Final, 3.6.9
>         Environment: Hibernate Core/Envers 3.6.9 and 4.0.0.Final, HSQLDB 2.2
>            Reporter: Steffen Ryll
>              Labels: auditing
>         Attachments: envers-one2many-insertupdatefalse-bug_20120109.zip
>
>
> We found a problem retrieving historical revisions of entities when there is a OneToMany association involved. Going from the one side to the many side always returns null. However, if I load that association through the normal entity manager, it is non-null (correctly).
> I have created a tiny test case (see attachment) that demonstrates the effect.
> The special twist is that removing the (insertable=false, updatable=false) parameters to the @JoinColumn annotation in Piece.java makes it work. But we do need those two options in our real project and removing them is no option.
> I will start looking into the Envers code and try tracking down the reason for that NullPointerException, but wanted to have a bug report created in the first place.

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