[POOL-151] Eviction thread is able to remove (destroy) in-flight (borrowed) objects

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Not A Problem
• Affects Version/s: 1.2, 1.4, 1.5, 1.5.1, 1.5.2, 1.5.3, 1.5.4
• Fix Version/s: 1.5.5
• Assignee: Unassigned
• Reporter: Hassan Sajjad
• Created: 13/Oct/09 16:08
• Updated: 12/Apr/10 23:39
• Resolved: 12/Apr/10 23:39

Description

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.

2009-10-12 15:08:40,254 DEBUG [asyncDelivery59] Borrowed session com.ibm.mq.jms.MQQueueSession@40bc88 for jms connector 
2009-10-12 15:08:40,341 DEBUG [Timer-0] Physically closing com.ibm.mq.jms.MQQueueSession@40bc88 for connector 
2009-10-12 15:08:40,669 DEBUG [asyncDelivery59] Returning session com.ibm.mq.jms.MQQueueSession@40bc88 for jms conn
ector
2009-10-12 15:08:40,433 ERROR [asyncDelivery59] Exception caught while committing transaction [com.ibm.mq.jms.MQQueueSession@40bc88]