TestListener listener = new TestListener();
ServerSocketFactory ssf = getServerSocketFactory();
ServerSocketFactory clssf = new CreationListenerServerSocketFactory(ssf, listener);
ServerSocket ss = clssf.createServerSocket();
int freePort = PortUtil.findFreePort(host);
ss.bind(new InetSocketAddress(host, freePort));
T t = new T(ss);
t.start();
assertFalse(listener.visited());