commons-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Mark Thomas (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (POOL-215) GenericKeyedObjectPool - multiple mutable fields not published safely
Date Wed, 02 May 2012 09:20:50 GMT

     [ https://issues.apache.org/jira/browse/POOL-215?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mark Thomas resolved POOL-215.
------------------------------

       Resolution: Fixed
    Fix Version/s: 2.0

Fixed in the refactoring to use BaseGenericObjectPool. All issues were fixed using volatile
rather than the eviction lock since that lock may be held for relatively long periods of time
and that should not block getters/setters.
                
> GenericKeyedObjectPool - multiple mutable fields not published safely
> ---------------------------------------------------------------------
>
>                 Key: POOL-215
>                 URL: https://issues.apache.org/jira/browse/POOL-215
>             Project: Commons Pool
>          Issue Type: Bug
>            Reporter: Sebb
>             Fix For: 2.0
>
>
> The GenericKeyedObjectPool has multiple mutable instance fields that are neither volatile
nor protected by syncronisation.
> This means that updates by one thread may not be seen by other threads.
> The following fields should either be made volatile, or be protected by a lock.
> The lock is more suitable if the main usage is already protected by a lock.
> blockWhenExhausted
> evictionPolicy (getter and setter should use evictionLock)
> lifo
> maxIdlePerKey
> maxTotal
> maxTotalPerKey
> maxWait
> minEvictableIdleTimeMillis (getter and setter should use evictionLock)
> numTestsPerEvictionRun (getter and setter should use evictionLock)
> testWhileIdle (getter and setter should use evictionLock)
> timeBetweenEvictionRunsMillis (getter and setter should use evictionLock)
> Note that where the same fields appear in GOP, they are protected (apart from evictionPolicy,
see POOL-214)

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message