Hi Richard,
By default the AHS is build as a servlet, and thus does not require to listen to a port for incoming blocking requests. When AHS is build as a server, but the port is not specified in the web.xml, it will chose to listen to the 51315 port by default. If you want to change this default port, then you can uncomment the parameter and specify the port you want.
Regards,
Jack van Ooststroom
Changed Fix Version(s) to 1.7 DR#3