In Jboss 7.x there ins't more jbossweb.sar/server.xml.
You have do this modify in the file standalone.xml or in the file the yoour start (-server-config=)
| | <!-- A HTTP/1.1 Connector on port 8080 --> |
| | <Connector protocol="HTTP/1.1" port="8080" address="${jboss.bind.address}" |
| | connectionTimeout="20000" redirectPort="8443" maxThreads="300" /> |