From: <glassfish_at_javadesktop.org>
Date: Fri, 26 Jun 2009 07:14:22 PDT

you can set log level of "connector" & "resource-adapter" modules to FINEST and see if there is any root cause for this exception.

asadmin set server.log-service.module-log-levels.resource-adapter=FINEST
asadmin set server.log-service.module-log-levels.connector=FINEST
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http://forums.java.net/jive/thread.jspa?messageID=353160