[jira] [Commented] (POOL-264) NullPointerException in GKOP.borrowObject()

["Niall Pemberton (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/POOL-264?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17651820#comment-17651820 ] 

Niall Pemberton commented on POOL-264:
--------------------------------------

The synchronization was removed in May 2011 when it was refactored to use java.util.concurrent based pooling:
 * [https://svn.apache.org/viewvc?view=revision&revision=1102500]

This change was included in the Pool 2.0 release (Java 1.5 minimum) but not in any of the Pool 1.x versions (Java 1.3 minimum).

> NullPointerException in GKOP.borrowObject()
> -------------------------------------------
>
>                 Key: POOL-264
>                 URL: https://issues.apache.org/jira/browse/POOL-264
>             Project: Commons Pool
>          Issue Type: Bug
>    Affects Versions: 1.5.6, 1.5.7, 1.6
>            Reporter: Leonid Meyerguz
>            Priority: Major
>
> While I cannot pin down a consistent repro, I occasionally observe a NullPointerException at org.apache.commons.pool.impl.GenericKeyedObjectPool.borrowObject(GenericKeyedObjectPool.java:1126)
> The pool is configured as follows:
> maxActive = -1
> maxIdle = 32
> maxTotal = 32
> whenExhaustedAction = WHEN_EXHAUSTED_GROW
> timeBetweenEvictionRunsMillis = 20000
> minEvictableIdleTimeMillis = 60000
> numTestsPerEvictionRun = -1
> The NullPointerException is thrown in the WHEN_EXHAUSTED_GROW branch of the code.  Specifically it appears that latch.getPool() returns null.
> Any suggestions for a work-around would be appreciated.



--
This message was sent by Atlassian Jira
(v8.20.10#820010)