Arianne is an engine to develop multiplayer online games like Stendhal
...The engine Marauroa provides a simple way of creating games on a portable and robust server architecture. Marauroa manages the client server communication and provides an object orientated view of the world for game developers. It handles database access in a transparent way to store player accounts, character progress and the state of the world
z9 is a simple client-server ERP framework,
based on a Python/PyQt modular smartclient and a PHP+SQL RESTful web service,
created for the "opificio zeronove" bike shop application.
Server and Client XML exchange via reflection. AJAX,PHP,JAVA and PERL reflection helper classes. Full NIO server for JAVA and RMI service. Basically create a PlugIN and let reflection do the work for you.