Looks like something else is using port 4713. See https://www.jboss.org/community/docs/DOC-9520
You have the choice of either stopping the other app, making the other app use a different port, or changing the port JBoss AS is using.
If you decide to change the port JBoss AS 5 is using, you can edit the file server/xxx/conf/bootstrap/bindings.xml.
Awesome! Thanks Peter!
Turns out that pulseaudio uses that port by default:
pulseaudi 6583 jamesw 31u IPv6 50799 TCP *:4713 (LISTEN)