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https://issues.apache.org/jira/browse/DERBY-3308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kristian Waagan resolved DERBY-3308.
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Resolution: Fixed
Derby Info: (was: [Patch Available])
Committed 'derby-3308-1a-eventlisteners_synchronization.diff' to trunk with
revision 614536.
I don't expect there will be more work on this issue, will close in a few days.
> Broken synchronization for event handling in ClientPooledConnection40
> ---------------------------------------------------------------------
>
> Key: DERBY-3308
> URL: https://issues.apache.org/jira/browse/DERBY-3308
> Project: Derby
> Issue Type: Bug
> Components: JDBC, Network Client
> Affects Versions: 10.2.2.0, 10.3.2.1, 10.4.0.0
> Reporter: Kristian Waagan
> Assignee: Kristian Waagan
> Priority: Minor
> Fix For: 10.4.0.0
>
> Attachments: derby-3308-1a-eventlisteners_synchronization.diff,
> derby-3308-1b-eventlisteners_synchronization.diff
>
>
> Access to the the list of event listeners is not synchronized properly.
> Taken the rather infrequent use of the relevant methods and the small
> critical sections, I mean it is sufficient to add synchronization to all the
> methods that access it at the method level. The same approach is taken in
> ClientPooledConnection (although not followed through consistently, some of
> the methods are unsynchronized).
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