why won't textarea update properly java

See more:

Java

UI

GUI

IO

I'm trying to get a FIX message from the client side to server side, where I created a UI for the server. The only problem is that, when I try to output the message onto the textarea, it won't update, while the rest of the program work, such as the text fields will all properly update, when called. I have the action event put onto a button click.

I put the output of the message inside a while loop, does that affect the way it outputs?

problem area

String inputLine, outputLine;
      try {
		while ((inputLine = in.readLine()) != null) 
		      { 
		       System.out.println ("Server: " + inputLine); 
		       
		       tfFIXMsg.append(  inputLine+ "\n\n\n");

action event

   /** ActionEvent handler - Called back when user clicks the button. */
   @Override
   public void actionPerformed(ActionEvent evt) {
    // Get the String entered into the TextField tfPort, convert to int
      port = Integer.parseInt(tfPort.getText());


      fileLocation = tfLocation.getText();
      String csvName = fileLocation;


  ServerSocket serverSocket = null;

  try {
       serverSocket = new ServerSocket(port);
      }
  catch (IOException e)
      {
       System.err.println("Could not listen on port: 57635.");
       System.exit(1);
      }

  Socket clientSocket = null;
  System.out.println ("Waiting for connection.....");

  try {
       clientSocket = serverSocket.accept();
      }
  catch (IOException e)
      {
       System.err.println("Accept failed.");
       System.exit(1);
      }

  System.out.println ("Connection successful");
  System.out.println ("Waiting for input.....");

  PrintWriter out = null;
try {
    out = new PrintWriter(clientSocket.getOutputStream(),
                                        true);
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}
  BufferedReader in = null;
try {
    in = new BufferedReader(
              new InputStreamReader( clientSocket.getInputStream()));
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}

  String inputLine, outputLine;

  try {
    while ((inputLine = in.readLine()) != null)
          {
           System.out.println ("Server: " + inputLine);



           tfFIXMsg.append(  inputLine+ "\n\n\n");



           if (inputLine.trim().equals("Bye.")) {
               System.out.println("Exit program");
               break;
               }

           Scanner input1 = new Scanner(new File(csvName));
           Scanner input2 = new Scanner(new File(csvName));
           Scanner input3 = new Scanner(new File(csvName));
           Scanner input4 = new Scanner(new File(csvName));


           String csvline = getCsvLineVal (getLocation34CSV(getTag34Value(Tag34Location(getTagCSV( parseFixMsg(inputLine ,inputLine))), getValueCSV( parseFixMsg(inputLine ,inputLine))), getVal34(input1,  input2)), getCSVLine( input3,  input4) );
           outputLine = compareClientFixCSV( getTagCSV( parseFixMsg(inputLine ,inputLine)), getValueCSV(parseFixMsg(inputLine ,inputLine)), getCSVTag(csvline), getCSVValue(csvline));

           out.println(outputLine);
           tfCSVLine.setText(outputLine);
           input1.close();
           input2.close();
           input3.close();
           input4.close();



          }
} catch (FileNotFoundException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}


  out.close();
  try {
    in.close();
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}
  try {
    clientSocket.close();
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}
  try {
    serverSocket.close();
} catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}
   }

More Specifically

tfFIXMsg.append(  inputLine+ "\n\n\n");