Post a patch at www.sf.net/projects/jboss
1) System.getProperty() is a priviledged operation,
it will throw a security exception if the client code
is not authorised, e.g. applets
2) The actual system property should be
modfiable as a property on the il mbean and
serialised with the other properties to the client,
e.g. port, ping time, etc.
I uploaded the patch to Source Forge. It is under request id 758213.
I did not incoporate JMX/Mbean suggestions since I am not very familiar with that interface.