[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2146) NullpointerException in DefaultDeleteEventListener.deleteTransientEntity

[Cyril (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=31869#action_31869 ] 

Cyril commented on HHH-2146:
----------------------------

I faced the same issue and fixed the Cascade.java source by downloading the hibernate core from SVN. However, when I try to build the core using 'mvn clean install', the build fails with all the entitymanager test-cases reported as failed. Do I need to build entitymanager before I can build the core? Am a newbie to hibernate, any help on this would be greatly appreciated.

Thanks,
   Cyril

> NullpointerException in DefaultDeleteEventListener.deleteTransientEntity
> ------------------------------------------------------------------------
>
>                 Key: HHH-2146
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2146
>             Project: Hibernate Core
>          Issue Type: Bug
>    Affects Versions: 3.2.0.cr5
>         Environment: Hibernate 3.2.0cr5, Oracle10g
>            Reporter: Martin Kartumovich
>            Assignee: Gail Badner
>            Priority: Minor
>             Fix For: 3.2.x, 3.3.x, 3.4
>
>         Attachments: Cascade.java, deletetransientmn.zip
>
>
> The following setup leads to a NPE in DefaultDeleteEventListener.deleteTransientEntity:
> Tables A, B
> Table V_A_B that is an M-N-Connection between A and B.
> Pojo for A has a Set of V_A_Bs.
> Pojo for B has a Set of V_A_Bs.
> Pojo C that has Sets of As and Bs.
> Cascades: all, delete-orphan
> -Create a new A and add a new V_A_B to its Set, that references to an existing B.
> -Delete B.
> -SaveOrUpdate Pojo C.
> In Hibernate 3.1.3 this works fine.
> In 3.2.0cr4+cr5 the removal of B results into an cascading removal of the never persisted V_A_B in the Set of B instead of ignoring it.
> This leads to an incorrect state where deleteTransientEntity is called with transientEnties=null.
> When now calling transientEnties.contains(...) the NPE is thrown.

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