// Responders
Responder bRes = new RecursingResponder(TestBasicTracing.advancedProtocol, bPlugin);
bRes.addRPCPlugin(bPlugin);
HttpServer server1 = new HttpServer(bRes, 21005);
server1.start();
Responder cRes = new EndpointResponder(TestBasicTracing.advancedProtocol);
cRes.addRPCPlugin(cPlugin);
HttpServer server2 = new HttpServer(cRes, 21006);
server2.start();