I can't find javadoc for Hessian lib. I want to know how to configure and full usage of Hessian client.
The documentation is at hessian.caucho.com, but Hessian's not commonly used any more, it seems to have withered on the vine.
You could have a look at Spring's Hessian client support, either to use it, or to give you an idea of how to use the Hessian API. This, at least, is well-documented.