How to use HTTP tunneling feature?
HTTP tunneling is useful in the case of when the firewall does messaging filtering, for example, firewall is used so that only also HTTP message go through. HIOP (IIOP over HTTP) package is designed as a plug in for VBJ, i.e., this feature can be used by both Java applications and Java applets. So users can just configure their client and server to only talk with HIOP rather than IIOP if there is a message filtering firewall between them and in this case, GateKeeper is not necessary. But HIOP is a much less efficient and scalable protocol than IIOP. The threshold of HIOP is set by two factors. If URLConnection’s implementation does not support Keep-Alive, (as is the case with JDK), then each request and its reply will have a new connection. Then the number of new connections the listener can accept at the same time determines how scalable the server can be, also the majority of time is spent on connection creation and network latency. In case of browsers that support Keep-Alive for URL
