SSH tunnel using java client.

I am using this java client - and I have id_rsa and keys with me.

I have tried to create ssh tunnel connection using but it’s giving-

com.jcraft.jsch.JSchException: Connection refused: connect

Could some one please help me to identify, how we can do it in java -

I tried this code to do it in java -

import com.jcraft.jsch.Channel;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;

public class UserAuthPubKey {
    public static void main(String[] arg) {
        try {
            JSch jsch = new JSch();

            String user = "root";
            String host = "**.**.**.**";
            int port = 5555;
            String privateKey = "C:\\Users\\Test\\AppData\\Roaming\\Skype\\My Skype Received Files\\id_rsa";

            System.out.println("identity added ");

            Session session = jsch.getSession(user, host, port);
            System.out.println("session created.");

            // disabling StrictHostKeyChecking may help to make connection but makes it insecure
            // see
            // java.util.Properties config = new java.util.Properties();
            // config.put("StrictHostKeyChecking", "no");
            // session.setConfig(config);

            System.out.println("session connected.....");

            Channel channel = session.openChannel("sftp");
            System.out.println("shell channel connected....");

            /*ChannelSftp c = (ChannelSftp) channel;

            String fileName = "test.txt";
            c.put(fileName, "./in/");

        } catch (Exception e) {

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The JSch library definitely makes this easy and supports port forwarding:

JSch jsch = new JSch();
Session session = jsch.getSession(user, host);
session.setPortForwardingL(listenPort, destHost, destPort);