[AXIS2]: How to have a client tunnel through a proxy server

[Masin, Valerie]

We need to do firewall tunneling via a proxy server. This means we need
to tell the client what the proxy address is, in addition to the actual
server endpoint. We can't set it on the jvm because we need to change it
dynamically at runtime.
Does anyone know how to do this using Axis?
Thanks, Valerie