How to send multiple files in parallel using ftp with single connection

Question

Hi.
i have written code for file upload manager using ftp..
it perfectly working with sequence file uploading in single connection..
And i tried to upload multiple files with parallel processing in a single connection.... but it is not working properly.. i also used thread concept
but single file only transfered and connection refused...
my code here...
//////////////////// main class //////////////////////////////////////////
ftp.connect();
ftp.login();
String [] archivos = new  String[100];
                                  File dir = new File("C:\\Files Uploading\\");
                                   archivos = dir.list();
                                   for (int s=0; s<archivos.length;s++)
     //Start Data Transfer Here
     new DataTransfer(archivos[s]).start();
                                   Thread.sleep(1000);
/////////////////////// thread class ////////////////////////////////
class DataTransfer extends Thread
      String FileName="";
      String LocalPath="",RemotePath="";
       public DataTransfer(String fname)
     FileName = fname;
     LocalPath = "C:\\Files Uploading\\" + FileName;
     RemotePath = FileName;
     System.out.println(LocalPath);          
        public void run()
                    System.out.println("DataTransfer Started");
     /File Transfer Here
     try
           FileInputStream input = new FileInputStream(LocalPath);
                           Ftp_Client.storeFile(RemotePath,input);
     System.out.println("Successfully sent : " + RemotePath);
     catch (Exception exc)
          System.out.println(exc.getMessage());
          System.out.println("DataTransfer Ended");
     }otherwise tell me any other alternate way

Answer 1

And i tried to upload multiple files with
parallel processing in a single connection....
but it is not working properly.FTP isn't a multiplexing protocol. How could it work at all?