String SFTPHOST = ""; // remote server host
int SFTPPORT = 22;
String SFTPUSER = "user";
String SFTPPASS = "password";
String SFTPWORKINGDIR = "/test";

Session session = null;
Channel channel = null;
ChannelSftp channelSftp = null;
Vector files = null;

  session = jsch.getSession(SFTPUSER, SFTPHOST, SFTPPORT);
  session.setPassword(SFTPPASS);
  java.util.Properties config = new java.util.Properties();
  config.put("StrictHostKeyChecking", "no");

  session.setConfig(config);
  session.connect();

  channel = session.openChannel("sftp");
  channel.connect();
  channelSftp = (ChannelSftp) channel;
  channelSftp.cd(SFTPWORKINGDIR);
  files = channelSftp.ls("*");

  for (ChannelSftp.LsEntry file : docFiles) {

    if (file.getAttrs().isDir()){
       continue;
    }else{
          // It is reading upto 1022 files only??
       inputStream = channelSftp.get(SFTPWORKINGDIR+"/"+fileName);
      // some further code
     }
  }