I have a problem with an OOTB 4.2.2.GA server installation. It is on a laptop used for offline demonstrations and it has a loopback adapter and a normal network interface.
The problem is that it is *very* slow and unresponsive when running the browser on localhost. Connect against it on the network and it is just fine. It seems to be wasting time on something (name lookups?). I've tried all combinations of hostname, localhost and IP:s with -b and -Djboss.address.binding.