From: James Richardson <james_at_time4tea.net>
Date: Fri, 7 Dec 2007 15:14:09 -0000 (UTC)

actually this looks like a bug.

There's no relation between javax.jms.ConnectionFactory and
javax.jms.XAConnectionFactory... casting between them is not safe.

this seems to be a irregularity in the spec, as XAQueueConnectionFactory
does extend ConnectionFactory, via QueueConnectionFactory...

james