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From "Kristian Waagan (JIRA)" <j...@apache.org>
Subject [jira] Updated: (DERBY-3308) Broken synchronization for event handling in ClientPooledConnection40
Date Wed, 23 Jan 2008 12:31:35 GMT

     [ https://issues.apache.org/jira/browse/DERBY-3308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kristian Waagan updated DERBY-3308:
-----------------------------------

    Attachment: derby-3308-1a-eventlisteners_synchronization.diff

'derby-3308-1a-eventlisteners_synchronization.diff' synchronizes all methods accessing the
list (a java.util.Vector) of statement event listeners.

I ran derbyall/suites.All without errors. Patch ready for review.

> 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
>
>
> 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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