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https://issues.apache.org/jira/browse/JCR-2168?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12724094#action_12724094
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Martijn Hendriks commented on JCR-2168:
---------------------------------------
Marcel, thanks again for having a look :) I'll commit the patch shortly.
> Avoid premature publication of XAItemStateManager
> -------------------------------------------------
>
> Key: JCR-2168
> URL: https://issues.apache.org/jira/browse/JCR-2168
> Project: Jackrabbit Content Repository
> Issue Type: Bug
> Components: jackrabbit-core
> Affects Versions: 1.5.6
> Reporter: Martijn Hendriks
> Attachments: JCR-2168.patch
>
>
> The XAItemStateManager constructor calls the super constructor
> (LocalItemStateManager) which registers the instance as a listener with the
> SharedItemStateManager. The construction of the instance has not yet been
> finished, but it is accessible from the SharedItemStateManager. This can
> result in strange exceptions like the following:
> java.lang.NullPointerException
> at
> org.apache.jackrabbit.core.state.XAItemStateManager.stateModified(XAItemStateManager.java:580)
> at
> org.apache.jackrabbit.core.state.StateChangeDispatcher.notifyStateModified(StateChangeDispatcher.java:111)
> at
> org.apache.jackrabbit.core.state.SharedItemStateManager.stateModified(SharedItemStateManager.java:400)
> at
> org.apache.jackrabbit.core.virtual.AbstractVISProvider.stateModified(AbstractVISProvider.java:445)
> at
> org.apache.jackrabbit.core.state.ItemState.notifyStateUpdated(ItemState.java:244)
>
> The NPE is caused by the commitLogs field being null (it has not yet been
> initialized to its final value).
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