Hi,
I don't see how the fact that we don't officially support Mac OS is an impediment to adding such option, which won't break anything else and make the OOTB experience for a Mac user work. Even if we can't (and likely shouldn't) go the full way of changing monitored machines, this would help.
Actually, I've seen that by default WFLY starts with the java.awt.headless=true option (and also with java.net.preferIPv4Stack=true, which I requested at
https://issues.jboss.org/browse/HAWKULAR-38) so this may be a minor issue, as I've only experienced it due to having my custom JAVA_OPTS.
Alexandre