Probe / DiagnosticsHandler currently only supports UDP / IP multicasting.
Add support for listening on TCP sockets. In this case, probe.sh needs to be invoked with the address of one member, e.g. probe.sh -addr 192.168.1.5.
This will help to run JGroups on GraalVM (
JGRP-2332) as MulticastSocket is currently not supported (see ./doc/design/PortingToGraalVM.txt for details).