We are using ConnectionManager.allocateConnection () to retrieve connections from the pool with our implementation of the ManagedConnectionFactory and ConnectionRequestInfo). Once our code reaches: InternalManagedConnectionPool.getConnection(Subject subject, ConnectionRequestInfo cri), there is only one object in the available connection event listeners list (InternalManagedConnectionPool.cls), and it doesn't match the cri we are looking for and therefore we get the: "Destroying connection that could not be successfully matched: " warning message: 12:39:40,506 WARN [JBossManagedConnectionPool] Destroying connection that could not be successfully matched: org.jboss.resou rce.connectionmanager.NoTxConnectionManager$NoTxConnectionEventListener@92b371[state=NORMAL mc=com.cisco.nm.cmp.gjc.GWManaged Connection@181f366 handles=0 lastUse=1197801580272 permit=false trackByTx=false mcp=org.jboss.resource.connectionmanager.JBos sManagedConnectionPool$OnePool@1ac0dde context=org.jboss.resource.connectionmanager.InternalManagedConnectionPool@c2813e] We are using Java1.5 & Jboss4.2.0GA View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4116223#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...