[jira] Updated: (POOL-122) java.util.Timer in EvictionTimer does not recover from OutOfMemoryError in Evictor

["Marcus Schulte (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/POOL-122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marcus Schulte updated POOL-122:
--------------------------------

    Attachment: fixes_POOL-122.patch

Added a patch implementing solution 1 plus unit test.

> java.util.Timer in EvictionTimer does not recover from OutOfMemoryError in Evictor
> ----------------------------------------------------------------------------------
>
>                 Key: POOL-122
>                 URL: https://issues.apache.org/jira/browse/POOL-122
>             Project: Commons Pool
>          Issue Type: Bug
>    Affects Versions: 1.3
>         Environment: any
>            Reporter: Marcus Schulte
>         Attachments: fixes_POOL-122.patch
>
>
> GenericKeyedObjectPool.Evictor.run() catches and ignores Exceptions, but not Errors, like OOME. Consequently, when, due to load-peeks an OOME is thrown in the evictor's timer-thread it dies miserably and no eviction will happen again in any of the pools loaded within the same class-loader (because the eviction timer is a static member). Also, the creation of evicting pools will fail with IllegalStateException.
> Possible fixes:
>    1. catch Throwable in GenericKeyedObjectPool.Evictor.run()
>    2. check and eventually re-instantiate the Eviction-Timer.

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