Hi Paul,
why not starting the AS with
./bin/standalone.sh -Djboss.bind.address=::1 -Djboss.bind.address.management=::1 -Djboss.bind.address.unsecure=::1 -Djava.net.preferIPv4Stack=false -Djava.net.preferIPv6Addresses=true
given you're using IPv6? I seems to prevent the issue afaics.
On a different topic, you should really remove all those libs from WEB-INF/lib folder in the created war; anything I see in there is already available on the app server.