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https://issues.apache.org/jira/browse/POOL-151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12765140#action_12765140
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Hassan Sajjad commented on POOL-151:
------------------------------------
Another use case illustrating the closed (post eviction) object being reused /
borrowed, which subsequently failed due to the prior action from the evictor.
{noformat}
2009-10-13 14:52:14,407 DEBUG [asyncDelivery51] Returning session
com.ibm.mq.jms.mqqueuesess...@1902242 for jms connector
2009-10-13 14:52:14,875 DEBUG [Timer-0] Physically closing
com.ibm.mq.jms.mqqueuesess...@1902242 for connector
2009-10-13 14:52:14,876 DEBUG [asyncDelivery64] Borrowed session
com.ibm.mq.jms.mqqueuesess...@1902242 for jms connector
2009-10-13 14:52:14,931 FATAL [asyncDelivery64] Failed to dispatch message
[javax.jms.IllegalStateException: MQJMS1024: session closed]
{noformat}
In the above log, thread id [asyncDelivery51] represents the last request that
processed OK and object was returned successfully after event completion.
Thread id [asyncDelivery64] failed because of this issue.
> Eviction thread is able to remove (destroy) in-flight (borrowed) objects
> ------------------------------------------------------------------------
>
> Key: POOL-151
> URL: https://issues.apache.org/jira/browse/POOL-151
> Project: Commons Pool
> Issue Type: Bug
> Affects Versions: 1.5.3
> Reporter: Hassan Sajjad
> Priority: Blocker
>
> Under high concurrent use, the eviction thread can temper with an in-use
> object from the pool, potentially causing catastrophic results, as illustrate
> in the below log from our use. Note the object - in our case JMSSession is
> closed in-flight (after message send but before commit), causing the commit
> to fail with {{javax.jms.IllegalStateException: MQJMS1024: session closed}}
> error.
> {noformat}
> 2009-10-12 15:08:40,254 DEBUG [asyncDelivery59] Borrowed session
> com.ibm.mq.jms.mqqueuesess...@40bc88 for jms connector
> 2009-10-12 15:08:40,341 DEBUG [Timer-0] Physically closing
> com.ibm.mq.jms.mqqueuesess...@40bc88 for connector
> 2009-10-12 15:08:40,669 DEBUG [asyncDelivery59] Returning session
> com.ibm.mq.jms.mqqueuesess...@40bc88 for jms conn
> ector
> 2009-10-12 15:08:40,433 ERROR [asyncDelivery59] Exception caught while
> committing transaction [com.ibm.mq.jms.mqqueuesess...@40bc88]
> {noformat}
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