SSH tunneling 2 gateways via JSch

I wonder if its possible to extend the answer in https://stackoverflow.com/questions/28850188/ssh-tunneling-via-jsch to a case where I have two gateways (two points) before the final host.

What I tried was

import com.jcraft.jsch.*;
import java.io.InputStream;
public class Main {
public static void main(String[] args){
Main t=new Main();
try{
t.go();
} catch(Exception ex){
ex.printStackTrace();
}
}
public void go() throws Exception{
StringBuilder outputBuffer = new StringBuilder();
String Gateway1="192.168.0.101"; // First level target
String user1="root";
String password="12qwaszx";
String Gateway2="192.168.0.102"; // The host of the second target
String user2 = "root";
String secondPassword="12qwaszx";
String endpoint = "10.81.77.52";
String finaluser="admin";
String finaluserpass="admin";
JSch jsch=new JSch();
Session session=jsch.getSession(user1, Gateway1, 22);
session.setPassword(password);
localUserInfo lui=new localUserInfo();
session.setUserInfo(lui);
session.setConfig("StrictHostKeyChecking", "no");
// create port from 2233 on local system to port 22 on tunnelRemoteHost
session.setPortForwardingL(2233, Gateway2, 22);
session.connect();
session.openChannel("direct-tcpip");
// create a session connected to port 2233 on the local host.
Session secondSession = jsch.getSession(user2, "localhost", 2233);
secondSession.setPassword(secondPassword);
secondSession.setUserInfo(lui);
secondSession.setConfig("StrictHostKeyChecking", "no");
secondSession.setPortForwardingL(2233, endpoint, 22);
secondSession.connect(); // now we're connected to the secondary system
secondSession.openChannel("direct-tcpip");
Session finalSession = jsch.getSession(finaluser, "localhost", 2233);
finalSession.setPassword(finaluserpass);
finalSession.setUserInfo(lui);
finalSession.setConfig("StrictHostKeyChecking", "no");
finalSession.connect();
Channel channel=secondSession.openChannel("exec");
((ChannelExec)channel).setCommand("show system information | match \"System Name\"");
channel.setInputStream(null);
InputStream stdout=channel.getInputStream();
channel.connect();
if (channel.isConnected()){
System.out.println("connected");
}
while (true) {
byte[] tmpArray=new byte[1024];
while(stdout.available() > 0){
int i=stdout.read(tmpArray, 0, 1024);
if(i<0)break;
outputBuffer.append(new String(tmpArray, 0, i));
}
if(channel.isClosed()){
System.out.println("exit-status: "+channel.getExitStatus());
break;
}
}
stdout.close();
channel.disconnect();
secondSession.disconnect();
session.disconnect();
System.out.print(outputBuffer.toString());
}
class localUserInfo implements UserInfo {
String passwd;
public String getPassword(){ return passwd; }
public boolean promptYesNo(String str){return true;}
public String getPassphrase(){ return null; }
public boolean promptPassphrase(String message){return true; }
public boolean promptPassword(String message){return true;}
public void showMessage(String message){}
}
}

But despite my efforts, I don't actually get to connect to the endpoint. Getting

com.jcraft.jsch.JSchException: PortForwardingL: local port 127.0.0.1:2233 cannot be bound.
at com.jcraft.jsch.PortWatcher.<init>(PortWatcher.java:158)
at com.jcraft.jsch.PortWatcher.addPort(PortWatcher.java:110)
at com.jcraft.jsch.Session.setPortForwardingL(Session.java:1847)
at com.jcraft.jsch.Session.setPortForwardingL(Session.java:1828)
at com.jcraft.jsch.Session.setPortForwardingL(Session.java:1809)
at com.jcraft.jsch.Session.setPortForwardingL(Session.java:1792)
at Main.go(Main.java:36)
at Main.main(Main.java:9)
Caused by: java.net.BindException: Address already in use: JVM_Bind
at java.net.DualStackPlainSocketImpl.bind0(Native Method)
at java.net.DualStackPlainSocketImpl.socketBind(DualStackPlainSocketImpl.java:106)
at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:387)
at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:190)
at java.net.ServerSocket.bind(ServerSocket.java:375)
at java.net.ServerSocket.<init>(ServerSocket.java:237)
at com.jcraft.jsch.PortWatcher.<init>(PortWatcher.java:150)
... 7 more
Process finished with exit code 0

Please, if anyone could help me. I need to Get to the endpoint by ssh tunneling two gateways.

I swear I didn't meant it,

but the problem was that the first lport was equal to the second.

it worked like bellow:

  session.setPortForwardingL(2222, Gateway2, 22);
session.connect();
session.openChannel("direct-tcpip");
Session secondSession = jsch.getSession(user2, "localhost", 2222);