Esta pregunta ya tiene una respuesta aquí:

Estoy usando elConnect() método en elSsh Clase Java a continuación para conectarse a un servidor utilizando SSH (JSch) y ejecutar un comando en el servidor.

El problema es que cuando se ejecutaConnect() el servidor solicita los siguientes mensajes:

Kerberos username [********]: 

Kerberos password for ********: 

Y para continuar corriendo, necesito presionar manualmenteEntrar presione dos veces, una para el nombre de usuario y otra para la contraseña. He intentado agregar el siguiente código:

// Press ENTER
Robot r = new Robot();
r.keyPress(KeyEvent.VK_ENTER);
r.keyRelease(KeyEvent.VK_ENTER);

Pero este código solo funciona para el nombre de usuario, no puedo entender cómo presionar ENTER automáticamente cuando el servidor solicita la contraseña. Hasta ahora he tratado de poner otro fragmento de código como el que se muestra arriba debajo del

session.connect();

línea.

package ConnectSSH;

import java.awt.Robot;
import java.awt.event.KeyEvent;
import java.io.*;

import com.jcraft.jsch.ChannelExec;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.Session;
import com.jcraft.jsch.UserInfo;

public class Ssh{

    private static final String user = "********";
    private static final String host = "********";
    private static final Integer port = 22;
    private static final String pass = "********";

    public void Connect() throws Exception{
        JSch jsch = new JSch();
        Session session = jsch.getSession(user, host, port);
        UserInfo ui = new SUserInfo(pass, null);
        session.setUserInfo(ui);
        session.setPassword(pass);
        //Press ENTER
        Robot r = new Robot();
        r.keyPress(KeyEvent.VK_ENTER);
        r.keyRelease(KeyEvent.VK_ENTER);
        session.connect();
        ChannelExec channelExec = (ChannelExec)session.openChannel("exec");
        InputStream in = channelExec.getInputStream();
        channelExec.setCommand("RUN COMMAND");
        channelExec.connect();
        BufferedReader reader = new BufferedReader(new InputStreamReader(in));
        String linea = null;
        int index = 0;
        while ((linea = reader.readLine()) != null) {
            System.out.println(++index + " : " + linea);
        }
        channelExec.disconnect();
        session.disconnect();
    } 
}

Y este es elSUserInfo clase

package ConnectSSH;

import com.jcraft.jsch.UserInfo;

public class SUserInfo implements UserInfo {

    private String password;
    private String passPhrase;

    public SUserInfo (String password, String passPhrase) {
        this.password = password;
        this.passPhrase = passPhrase;
    }

    public String getPassphrase() {
        return passPhrase;
    }

    public String getPassword() {
        return password;
    }

    public boolean promptPassphrase(String arg0) {
        return true;
    }

    public boolean promptPassword(String arg0) {
        return false;
    }

    public boolean promptYesNo(String arg0) {
        return true;
    }

    public void showMessage(String arg0) {
        System.out.println("SUserInfo.showMessage()");
    }
}

Y esto es lo que devuelve el registrador:

INFO: Connecting to ****** port 22
INFO: Connection established
INFO: Remote version string: SSH-2.0-Sun_SSH_1.1.2
INFO: Local version string: SSH-2.0-JSCH-0.1.52
INFO: CheckCiphers: aes256-ctr,aes192-ctr,aes128-ctr,aes256-cbc,aes192-cbc,aes128-cbc,3des-ctr,arcfour,arcfour128,arcfour256
INFO: aes256-ctr is not available.
INFO: aes192-ctr is not available.
INFO: aes256-cbc is not available.
INFO: aes192-cbc is not available.
INFO: CheckKexes: diffie-hellman-group14-sha1,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521
INFO: diffie-hellman-group14-sha1 is not available.
INFO: CheckSignatures: ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
INFO: SSH_MSG_KEXINIT sent
INFO: SSH_MSG_KEXINIT received
INFO: kex: server: gss-group1-sha1-toWM5Slw5Ew8Mqkay+al2g==,diffie-hellman-group-exchange-sha1,diffie-hellman-group1-sha1
INFO: kex: server: ssh-rsa,ssh-dss
INFO: kex: server: aes128-ctr,aes128-cbc,arcfour,3des-cbc,blowfish-cbc,aes192-ctr,aes192-cbc,aes256-ctr,aes256-cbc
INFO: kex: server: aes128-ctr,aes128-cbc,arcfour,3des-cbc,blowfish-cbc,aes192-ctr,aes192-cbc,aes256-ctr,aes256-cbc
INFO: kex: server: hmac-md5,hmac-sha1,hmac-sha1-96,hmac-md5-96
INFO: kex: server: hmac-md5,hmac-sha1,hmac-sha1-96,hmac-md5-96
INFO: kex: server: none,zlib
INFO: kex: server: none,zlib
INFO: kex: server: ar-EG,ar-SA,bg-BG,ca-ES,cs-CZ,da-DK,de,de-AT,de-CH,de-DE,de-LU,el-CY,el-GR,en-AU,en-CA,en-GB,en-IE,en-MT,en-NZ,en-US,es,es-AR,es-BO,es-CL,es-CO,es-CR,es-EC,es-ES,es-GT,es-MX,es-NI,es-PA,es-PE,es-PY,es-SV,es-UY,es-VE,et-EE,fi-FI,fr,fr-BE,fr-CA,fr-CH,fr-FR,fr-LU,he-IL,hi-IN,hr-HR,hu-HU,is-IS,it,it-IT,ja-JP,kk-KZ,ko,ko-KR,lt-LT,lv-LV,mk-MK,mt-MT,nb-NO,nl-BE,nl-NL,nn-NO,pl,pl-PL,pt-BR,pt-PT,ro-RO,ru,ru-RU,sh-BA,sk-SK,sl-SI,sq-AL,sr-CS,sv,sv-SE,th-TH,tr-TR,uk-UA,zh,zh-CN,zh-HK,zh-TW,ar,ca,cz,da,el,et,fi,he,hu,ja,lt,lv,nl,no,no-NO,no-NY,nr,pt,sr-SP,sr-YU,th,tr,i-default
INFO: kex: server: ar-EG,ar-SA,bg-BG,ca-ES,cs-CZ,da-DK,de,de-AT,de-CH,de-DE,de-LU,el-CY,el-GR,en-AU,en-CA,en-GB,en-IE,en-MT,en-NZ,en-US,es,es-AR,es-BO,es-CL,es-CO,es-CR,es-EC,es-ES,es-GT,es-MX,es-NI,es-PA,es-PE,es-PY,es-SV,es-UY,es-VE,et-EE,fi-FI,fr,fr-BE,fr-CA,fr-CH,fr-FR,fr-LU,he-IL,hi-IN,hr-HR,hu-HU,is-IS,it,it-IT,ja-JP,kk-KZ,ko,ko-KR,lt-LT,lv-LV,mk-MK,mt-MT,nb-NO,nl-BE,nl-NL,nn-NO,pl,pl-PL,pt-BR,pt-PT,ro-RO,ru,ru-RU,sh-BA,sk-SK,sl-SI,sq-AL,sr-CS,sv,sv-SE,th-TH,tr-TR,uk-UA,zh,zh-CN,zh-HK,zh-TW,ar,ca,cz,da,el,et,fi,he,hu,ja,lt,lv,nl,no,no-NO,no-NY,nr,pt,sr-SP,sr-YU,th,tr,i-default
INFO: kex: client: diffie-hellman-group1-sha1,diffie-hellman-group-exchange-sha1,diffie-hellman-group-exchange-sha256,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521
INFO: kex: client: ssh-rsa,ssh-dss,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521
INFO: kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
INFO: kex: client: aes128-ctr,aes128-cbc,3des-ctr,3des-cbc,blowfish-cbc
INFO: kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
INFO: kex: client: hmac-md5,hmac-sha1,hmac-sha2-256,hmac-sha1-96,hmac-md5-96
INFO: kex: client: none
INFO: kex: client: none
INFO: kex: client: 
INFO: kex: client: 
INFO: kex: server->client aes128-ctr hmac-md5 none
INFO: kex: client->server aes128-ctr hmac-md5 none
INFO: SSH_MSG_KEXDH_INIT sent
INFO: expecting SSH_MSG_KEXDH_REPLY
INFO: ssh_rsa_verify: signature true
WARN: Permanently added '********' (RSA) to the list of known hosts.
INFO: SSH_MSG_NEWKEYS sent
INFO: SSH_MSG_NEWKEYS received
INFO: SSH_MSG_SERVICE_REQUEST sent
INFO: SSH_MSG_SERVICE_ACCEPT received
INFO: Authentications that can continue: gssapi-with-mic,publickey,keyboard-interactive,password
INFO: Next authentication method: gssapi-with-mic

Y luego muestra el siguiente mensaje

Kerberos username [******]: Kerberos password for ********:

Donde elEntrar el robot presiona automáticamente la tecla para el nombre de usuario, pero elEntrar la tecla para la contraseña debe presionarse desde el teclado.