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From "Nick Tuckett (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (JCR-3438) Lock tokens acquired inside a transaction do not get released when session logs out
Date Wed, 10 Oct 2012 13:29:03 GMT

    [ https://issues.apache.org/jira/browse/JCR-3438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13473213#comment-13473213
] 

Nick Tuckett commented on JCR-3438:
-----------------------------------

I've had a look through XATest.java - thank you for bringing it to my attention, very helpful!

testAddRemoveLockToken, testAddLockTokenRemoveNode might show my issue as they use two transactions
in two different sessions, but explicitly remove the lock token from the first session so
avoids the issue (and don't log out the first session anyway).
                
> Lock tokens acquired inside a transaction do not get released when session logs out
> -----------------------------------------------------------------------------------
>
>                 Key: JCR-3438
>                 URL: https://issues.apache.org/jira/browse/JCR-3438
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: jackrabbit-core
>    Affects Versions: 2.4.2
>            Reporter: Nick Tuckett
>         Attachments: LockTokenTransactionTest.java
>
>
> When outside a transaction, LockManager.addLockToken() calls org.apache.jackrabbit.core.lock.LockManagerImpl.addLockToken().
This sets the lock holder, and if the LockInfo object is actually an InternalLockInfo object,
it adds that object as a session listener. This means that the LockInfo object is notified
when the session is logging out, whereupon it causes the session to release the lock token.
> When adding a lock token inside a transaction, the underlying implementation calls org.apache.jackrabbit.core.lock.XAEnvironment.addLockToken().
This sets the lock holder on the LockInfo object but does not add it as a session listener.
Consequently the lock token remains owned by the session, even when the session finishes logging
out.
> Subsequent attempts to get the lock token in other sessions using the same credentials
then fail.

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