OpenShift java.net.SocketException: Permissão negada

todos os conselhos apreciados.

inicializador de webapp.java

    try {
        new Thread() {
            public void run() {
                com.jobs.spring.chat.Server chatServer = new com.jobs.spring.chat.Server();
                chatServer.startServer();
            }
        }.start();
    } catch (Exception e) {
        e.printStackTrace();
    }

Servidor.java

import java.net.Socket;

import com.corundumstudio.socketio.AckRequest;
import com.corundumstudio.socketio.Configuration;
import com.corundumstudio.socketio.SocketIOClient;
import com.corundumstudio.socketio.SocketIOServer;
import com.corundumstudio.socketio.listener.ConnectListener;
import com.corundumstudio.socketio.listener.DataListener;
import com.corundumstudio.socketio.listener.DisconnectListener;
import com.fasterxml.jackson.databind.ObjectMapper;

/**
 * https://blog.openshift.com/paas-websockets/
 * @author Richard
 *
 */
public class Server {

    //private static final String SERVER = "localhost";
    private static final String SERVER = "jbosswildfly-easyjobs.rhcloud.com";
    private static final Integer PORT = 8000;

    public static void main(String[] args) {
        startServer();
    }

    public static void startServer() {
        Configuration config = new Configuration();
        config.setHostname(SERVER);
        config.setPort(PORT);
        final SocketIOServer server = new SocketIOServer(config);

        server.addConnectListener(new ConnectListener() {
            @Override
            public void onConnect(SocketIOClient client) {
                System.out.println("onConnected");
                client.sendEvent("chat_message:message", new Message("Welcome to the chat!"));
            }
        });

        server.addDisconnectListener(new DisconnectListener() {
            @Override
            public void onDisconnect(SocketIOClient client) {
                System.out.println("onDisconnected");
            }
        });

        server.addEventListener("chat_message:send", String.class, new DataListener<String>() {
            @Override
            public void onData(SocketIOClient client, String data, AckRequest ackSender) throws Exception {
                Message message = null;
                try {
                    message = new ObjectMapper().readValue(data.toString(), Message.class);
                } catch (Exception e) {
                    e.printStackTrace();
                }
                message.setDate(System.currentTimeMillis());
                server.getBroadcastOperations().sendEvent("chat_message:message", message);
            }
        });

        System.out.println("Starting Chat server on " + SERVER + ":" + PORT+" ...");
        server.start();
        System.out.println("Chat server started");
        System.out.println("Chat server Environment Info: " + System.getenv());
        try {
            Socket socket = new Socket(SERVER, PORT);
            printSocketInformation(socket);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    /**
     * Prints debug output (to stdout) for the given Java Socket.
     */
    public static void printSocketInformation(Socket socket) {
        try {
            System.out.format("Port:                 %s\n", socket.getPort());
            System.out.format("Canonical Host Name:  %s\n", socket.getInetAddress().getCanonicalHostName());
            System.out.format("Host Address:         %s\n\n", socket.getInetAddress().getHostAddress());
            System.out.format("Local Address:        %s\n", socket.getLocalAddress());
            System.out.format("Local Port:           %s\n", socket.getLocalPort());
            System.out.format("Local Socket Address: %s\n\n", socket.getLocalSocketAddress());
            System.out.format("Receive Buffer Size:  %s\n", socket.getReceiveBufferSize());
            System.out.format("Send Buffer Size:     %s\n\n", socket.getSendBufferSize());
            System.out.format("Keep-Alive:           %s\n", socket.getKeepAlive());
            System.out.format("SO Timeout:           %s\n", socket.getSoTimeout());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

em esta ligação fala sobre a ligação de portas e proxies. Não percebo tudo. Parece que eu deveria usar o porto 8000 (que eu sou), Mas eu não sou claro que hostname eu devo usar. Estou a usar o nome do url da minha aplicação (jbosswildfly-easyjobs.rhcloud.com). correcto?

se mudar o endereço para, http://jbosswildfly-easyjobs.rhcloud.com (ou seja, prefixo http://) recebo o seguinte erro:

Java. net. SocketException: endereço por resolver