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https://issues.apache.org/jira/browse/JCR-1979?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jukka Zitting updated JCR-1979:
-------------------------------

    Fix Version/s: 1.5.3
         Assignee: Jukka Zitting

This is the "Use the JCR versioning API instead of the 
/jcr:system/jcr:versionStorage tree to access version information" case I 
pointed out in  http://jackrabbit.apache.org/concurrency-control.html. The 
getReferences() method seems to break this assumption when it accesses the 
version store for backreferences. The getReferences() method should be made to 
work like the versioning API methods when accessing the version store.

I'll look into this and try to get a fix included already in 1.5.3 next week.

> Deadlock  on concurrent read & transactional write operations
> -------------------------------------------------------------
>
>                 Key: JCR-1979
>                 URL: https://issues.apache.org/jira/browse/JCR-1979
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: jackrabbit-core
>    Affects Versions: 1.5.0
>            Reporter: Przemo Pakulski
>            Assignee: Jukka Zitting
>             Fix For: 1.5.3
>
>
> Isuue has been introduced by resolving JCR-1755 (Transaction-safe 
> versioning). This fixed changed sequence of commits, but at the same time 
> order of acquiring locks has been disturbed.

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