This class is both used by servers to install proxies in a client's JVM,
and by clients to install proxies in a server's JVM. A proxy is a
serialisable object that on arrival at the target JVM, is initialised
with a local to the service object, on which it can communicate. A
service would send proxies to offload client processing and storage
needs. A client would send proxies to perform highly interactive
operation, on potentially large datasets.
called by the client on receiving a proxy object. The proxy can then
prepare itself for operation. However, this method should return
quickly; therefore, proxies requiring lengthy initialisation times
should perform such work in an internally created thread.
service - a reference to the service object, local for client
proxies, remote for service proxies.