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From "Timothee Maret (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (JCR-2981) Bundle of events may be dropped due to NP.
Date Wed, 01 Jun 2011 15:34:47 GMT

    [ https://issues.apache.org/jira/browse/JCR-2981?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13042237#comment-13042237
] 

Timothee Maret commented on JCR-2981:
-------------------------------------

>From the logs:

2011-06-01 17:30:58,665 DEBUG org.apache.jackrabbit.jcr2spi.WorkspaceManager - Dump:
java.lang.NullPointerException
        at org.apache.jackrabbit.jcr2spi.hierarchy.HierarchyManagerImpl.lookup(HierarchyManagerImpl.java:92)
        at org.apache.jackrabbit.jcr2spi.hierarchy.HierarchyEventListener.pushEvents(HierarchyEventListener.java:152)
        at org.apache.jackrabbit.jcr2spi.hierarchy.HierarchyEventListener.onEvent(HierarchyEventListener.java:96)
        at org.apache.jackrabbit.jcr2spi.WorkspaceManager.onEventReceived(WorkspaceManager.java:781)
        at org.apache.jackrabbit.jcr2spi.WorkspaceManager.access$1100(WorkspaceManager.java:122)
        at org.apache.jackrabbit.jcr2spi.WorkspaceManager$ChangePolling.run(WorkspaceManager.java:1158)
        at java.lang.Thread.run(Thread.java:680)

> Bundle of events may be dropped due to NP.
> ------------------------------------------
>
>                 Key: JCR-2981
>                 URL: https://issues.apache.org/jira/browse/JCR-2981
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: jackrabbit-jcr2spi
>    Affects Versions: 2.2.5
>            Reporter: Timothee Maret
>            Priority: Minor
>         Attachments: HierarchyManagerImpl.java.patch
>
>
> In [1], if the resolver fails to lookup a node entry, a NP is thrown. This exception
will break the loop which forwards the events to the observer in [2].
> This will result in an observer not receiving events that he should have.
> [1] org.apache.jackrabbit.jcr2spi.hierarchy.HierarchyManagerImpl#lookup(ItemId workspaceItemId)
> [2] org.apache.jackrabbit.jcr2spi.WorkspaceManager#onEventReceived(EventBundle[] eventBundles,InternalEventListener[]
lstnrs)

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