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From "Martijn Hendriks (JIRA)" <j...@apache.org>
Subject [jira] Created: (JCR-2168) Avoid premature publication of XAItemStateManager
Date Mon, 22 Jun 2009 10:42:07 GMT
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


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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