[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5750) Envers unset session on proxy

[Erik-Berndt Scheper (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=39312#action_39312 ] 

Erik-Berndt Scheper commented on HHH-5750:
------------------------------------------

I have verified that removing 
bq.{{proxy.getHibernateLazyInitializer().setImplementation( target );}}
from org.hibernate.envers.tools.Tools does fix the issue reported, and that all tests in the Envers test suite still pass.

This code was originally introduced by HHH-3871 (Unnecessary proxy initialization on audit record save), and later modified by HHH-4791 (Invalid assumption made in org.hibernate.envers.tools.Tools#getTargetFromProxy). 

The test case also passes with the existing code by changing
bq.{{Person pers1 = (Person) getSession().load(Person.class, id_pers1);}}
into 
bq.{{Person pers1 = (Person) getSession().get(Person.class, id_pers1);}}

So this could be used as a work around.



> Envers unset session on proxy
> -----------------------------
>
>                 Key: HHH-5750
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5750
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: envers
>    Affects Versions: 3.6.0
>            Reporter: Sven Rienstra
>            Assignee: Erik-Berndt Scheper
>         Attachments: HHH5750ImprovedTestcase.zip, ToolsTest.java
>
>
> A bug in envers Tools causes proxy objects to lose their session after post-insert actions have been performed. The function Tools.getTargetFromProxy loads an instance of the proxytarget with a temporary session, puts the instance into the proxy and finally closes the session. After this all the persistentbags in the instance have lost their session because it is closed. The attached testcase demonstrates this behavior. 
> I'm not sure how this should be fixed, but i guess the proxy should be reattached to the old session after envers is done with it.

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