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From "Jan Haderka (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JCR-1223) Ocassionally NPE on node checkin
Date Mon, 26 May 2008 17:15:56 GMT

    [ https://issues.apache.org/jira/browse/JCR-1223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12599880#action_12599880

Jan Haderka commented on JCR-1223:

Actually I managed to get this issue as well and found a way how to get it any time ... all
I have to do is to create a node and then version it exactly 8 times ... during 8th checkin
attempt I get the exception. 
The stacktrace is bit different (lines numbers) since I'm using JR 1.4.2.

> Ocassionally NPE on node checkin
> --------------------------------
>                 Key: JCR-1223
>                 URL: https://issues.apache.org/jira/browse/JCR-1223
>             Project: Jackrabbit
>          Issue Type: Bug
>          Components: jackrabbit-core, versioning
>    Affects Versions: 1.3.1
>            Reporter: Christoph Kiehl
> I find the following Exception in our log files from time to time. I don't know how to
replicate it and I couldn't find a ticket in Jira nor seemed the recent changes on the participating
classes in trunk handling this error:
> java.lang.NullPointerException
>         at org.apache.jackrabbit.core.version.InternalVersionImpl.storeXCessors(InternalVersionImpl.java:225)
>         at org.apache.jackrabbit.core.version.InternalVersionImpl.internalAddSuccessor(InternalVersionImpl.java:281)
>         at org.apache.jackrabbit.core.version.InternalVersionImpl.internalAttach(InternalVersionImpl.java:265)
>         at org.apache.jackrabbit.core.version.InternalVersionHistoryImpl.checkin(InternalVersionHistoryImpl.java:444)
>         at org.apache.jackrabbit.core.version.AbstractVersionManager.checkin(AbstractVersionManager.java:375)
>         at org.apache.jackrabbit.core.version.XAVersionManager.checkin(XAVersionManager.java:368)
>         at org.apache.jackrabbit.core.version.XAVersionManager.checkin(XAVersionManager.java:157)
>         at org.apache.jackrabbit.core.NodeImpl.checkin(NodeImpl.java:2933) 
> [...]

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