I'm currently looking at the JMx implementation in jGroups 2.6.1.
It seems that using a Receiver on a Channel does not update the number and size of received messages: the dumpStats operation and the attributes ReceivedBytes and ReceivedMessages return a false result.

The deprecated method receive in the class JChannel increments the variables received_msgs and received_bytes. I think the method up(Event) in the class JChannel should also update the counters. Do you agree?