[jira] [Resolved] (POOL-308) JMX pool entries are never deregistered when web application unloads/reloads

["Mark Thomas (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/POOL-308?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mark Thomas resolved POOL-308.
------------------------------
    Resolution: Invalid

You need to close the pool to release the resources. The released resources include the JMX registration.

ServletContextListener.destroy() is typically where you'd do this.

> JMX pool entries are never deregistered when web application unloads/reloads
> ----------------------------------------------------------------------------
>
>                 Key: POOL-308
>                 URL: https://issues.apache.org/jira/browse/POOL-308
>             Project: Commons Pool
>          Issue Type: Bug
>    Affects Versions: 2.4.1, 2.4.2
>            Reporter: Dmitri Blinov
>
> My web application contains commons-pool.jar inside WEB-INF/lib if that matters and runs on Tomcat7.
> Each time application reloads without server restart, I see via JConsole on MBeans tab, that under org.apache.commons.pool2/GenericObjectPool node a list of created pools (pool, pool1, pool2 etc) is extended with newly created ones but old pool entries are never removed. 
> Besides the pools list starting look ugly and messy after a few restarts I beleive this may lead to memory leaks somehow.



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