[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2937) NullPointException during flush if getSnapshot return null

[Emilio Dolce (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2937?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_28740 ] 

Emilio Dolce commented on HHH-2937:
-----------------------------------

It is a real NPE, but I'm sorry I have not a test case for this issue to be executed in isolation.

It is related to a delete operation of a parent entity with a filled one-to-many relation, recovered from the http session, so launched into a new hibernate session.

Therefore I think that is correct to assume that, if a snapshot is not found, the collection is to be considered dirty.

For the moment I resolved this issue by creating a custom PersistentBag that overwrite the equalsSnapshot method.

Thanks for a very prompt answer.


> NullPointException during flush if getSnapshot return null
> ----------------------------------------------------------
>
>                 Key: HHH-2937
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2937
>             Project: Hibernate3
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 3.2.2
>         Environment: Windows
>            Reporter: Emilio Dolce
>
> The method equalsSnapshot of the PersistentBag class do not check if returned snapshot is null causing a NullPointException.
> Please che the next condition with this:
> if ( sn == null || sn.size()!=bag.size() ) return false;

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