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From "Dag H. Wanvik (JIRA)" <derby-...@db.apache.org>
Subject [jira] Commented: (DERBY-1688) ConsistencyToken.hashCode() is not thread safe
Date Mon, 14 Aug 2006 15:47:14 GMT
    [ http://issues.apache.org/jira/browse/DERBY-1688?page=comments#action_12427917 ] 
            
Dag H. Wanvik commented on DERBY-1688:
--------------------------------------

Looks good. Since this code is/could be non-obvious, I think it would
be nice to add a code comment including a link to the URL you mention.


> ConsistencyToken.hashCode() is not thread safe
> ----------------------------------------------
>
>                 Key: DERBY-1688
>                 URL: http://issues.apache.org/jira/browse/DERBY-1688
>             Project: Derby
>          Issue Type: Bug
>          Components: Network Server
>    Affects Versions: 10.2.0.0, 10.3.0.0, 10.2.2.0
>            Reporter: Knut Anders Hatlen
>         Assigned To: Knut Anders Hatlen
>            Priority: Minor
>         Attachments: derby-1688.diff, derby-1688.stat
>
>
> If ConsistencyToken.hashCode() is run concurrently by different threads, some of the
threads may see a partial result instead of the correct hash code. This is not a problem in
the current code since all calls to that method are synchronized on a higher level, but it
would be good to fix in case the method will be used differently in the future.

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