unable to execute a .sh script with Jsch

i'm trying to execute a script shell in a unix server from my java application (on my windows seven station) using the ssh api Jsch.

the script shell i'm using "start_lm" is a C binary.

this is the code i'm using (it's from the Jsch website exemples)

      try{
      JSch jsch=new JSch();  

      Session session=jsch.getSession(user, host, 22);

      UserInfo ui=new MyUserInfo();
      session.setUserInfo(ui);
      session.connect();

      String command="user/psi/start_lm";

      Channel channel=ses开发者_运维问答sion.openChannel("exec");
      ((ChannelExec)channel).setCommand(command);

      channel.setInputStream(null);

      ((ChannelExec)channel).setErrStream(System.err);

      InputStream in=channel.getInputStream();

      channel.connect();

      while(true){

        if(channel.isClosed()){
          System.out.println("exit-status: "+channel.getExitStatus());
          break;
        }
        try{Thread.sleep(1000);}catch(Exception ee){}
      }
      channel.disconnect();
      session.disconnect();
    }

the error i'm getting is

exit-status: -1 what does it mean

thanks for ure help.

There's the problem I believe

". ./start_lm.sh

It should be below provided script present in current directory

"./start_lm.sh

as exit status 127 says

127 "command not found" illegal_command 

String command="/bin/sh /user/psi/start_lm.sh";

Please try the above, for jsch might be using an non-interactive shell.