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From "Jukka Zitting (Resolved) (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (JCR-3063) NullPointerException in ItemManager
Date Tue, 27 Sep 2011 17:33:47 GMT

     [ https://issues.apache.org/jira/browse/JCR-3063?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jukka Zitting resolved JCR-3063.
--------------------------------

    Resolution: Fixed

I restored the JCR-2171 fix in revision 1176465 to prevent the deadlock. In the same revision
I added explicit checks against the NPEs and CMEs thrown by the test case. The CMEs are avoided
by explicit synchronization and NPEs cause InvalidItemStateExceptions instead.

A more thorough solution would probably be preferable, but at least the current solution avoids
the RuntimeExceptions, so I'm re-resolving this as fixed for now.

I also merged the change to the 2.2 branch in revision 1176482 so we can still ship this in
2.2.9.
                
> NullPointerException in ItemManager
> -----------------------------------
>
>                 Key: JCR-3063
>                 URL: https://issues.apache.org/jira/browse/JCR-3063
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: jackrabbit-core
>    Affects Versions: 2.2.5, 2.2.8
>            Reporter: Unico Hommes
>             Fix For: 2.2.9
>
>         Attachments: NPEandCMETest.java
>
>
> We have a lot of these occurring:
> java.lang.NullPointerException
> 	at org.apache.jackrabbit.core.ItemManager.getDefinition(ItemManager.java:206)
> 	at org.apache.jackrabbit.core.ItemData.getDefinition(ItemData.java:99)
> 	at org.apache.jackrabbit.core.AbstractNodeData.getNodeDefinition(AbstractNodeData.java:73)
> 	at org.apache.jackrabbit.core.NodeImpl.getDefinition(NodeImpl.java:2430)
> 	at org.apache.jackrabbit.core.ItemValidator.isProtected(ItemValidator.java:373)
> 	at org.apache.jackrabbit.core.ItemValidator.checkCondition(ItemValidator.java:273)
> 	at org.apache.jackrabbit.core.ItemValidator.checkRemove(ItemValidator.java:254)
> 	at org.apache.jackrabbit.core.ItemRemoveOperation.perform(ItemRemoveOperation.java:63)
> 	at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:200)
> 	at org.apache.jackrabbit.core.ItemImpl.perform(ItemImpl.java:91)
> 	at org.apache.jackrabbit.core.ItemImpl.remove(ItemImpl.java:322)
> 	at org.apache.jackrabbit.core.NPEandCMETest$TestTask.run(NPEandCMETest.java:87)
> 	at java.lang.Thread.run(Thread.java:679)
> I'll attach a junit test to reproduce this exception.

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