I've seen a bug in bugdatabase:
Bug ID: 6514413
"This appears to be a bug. Even when the connection is closed, there appears to
be an active MQ client daemon thread which prevents the VM from exiting. Could
you file a GlassFish issue? We shall investigate this further."
Can it be the same?
[Message sent by forum member 'mbazs' (mbazs)]
http://forums.java.net/jive/thread.jspa?messageID=225962