Cool RMI remote method invocation library. Usage is so simple:
Server side:

		String host="localhost";
		int port=8889;
		CoolRMIServer server=new CoolRMIServer(getClass().getClassLoader(), host, port);
		server.addService(TestServiceInterface.class.getName(), new TestServiceImpl());
		server.start();

Client side:

		String reply=((TestServiceInterface)new CoolRMIClient(host, port).getSingleUseService(TestServiceInterface.class.getClassLoader(), TestServiceInterface.class)).addPreAndPostfix("Cool RMI");