آپلود فایل - متن فارسی مشکل دار می شه

سلام دوستان من از روشی که تو همین فروم بود آپلود رو نوشتم و درست کار میکنه، هم فایل ارسال می شه و هم پارامتر های همراهش.

اما مشکلی که هست اینه که متن های فارسی درست ارسال نمی شن. حتی اسم فایل اگر فارسی باشه درست ارسال نمی شه و حروف عجق وجق ارسال می کنه.
کجا باید تگی چیزی اضافه کنم؟

final Thread thread = new Thread(new Runnable() {
  @Override
  public void run() {
    String lineEnd = "\r\n"; // .getBytes("UTF-8")
    String twoHyphens = "--";
    String boundary = "*****";

    int bytesRead, bytesAvailable, bufferSize;
    byte[] buffer;
    int maxBufferSize = /*1 **/ 1024 * 1024;

    try {
      URL url = new URL("url_adress");
      FileInputStream fileInputStream = new FileInputStream(new File(filePath));

      HttpURLConnection connection = (HttpURLConnection) url.openConnection();
      connection.setDoInput(true); // Allow Inputs
      connection.setDoOutput(true); // Allow Outputs
      connection.setUseCaches(false); // Don't use a Cached Copy
      connection.setRequestMethod("POST");
      connection.setRequestProperty("Connection", "Keep-Alive");
      connection.setRequestProperty("ENCTYPE", "multipart/form-data");
      connection.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
      connection.setRequestProperty("file_uploading", filePath);

      DataOutputStream dataOutputStream = new DataOutputStream(connection.getOutputStream());

      dataOutputStream.writeBytes(twoHyphens + boundary + lineEnd);
      dataOutputStream.writeBytes("Content-Disposition: form-data; name=\"file_uploading\";filename=\"" + filePath + "\"" + lineEnd);
      dataOutputStream.writeBytes(lineEnd);

      // create a buffer of maximum size
      bytesAvailable = fileInputStream.available();

      // maxBufferSize = 1024;
      bufferSize = Math.min(bytesAvailable, maxBufferSize);
      buffer = new byte[bufferSize];

      // read file and write it into form...
      bytesRead = fileInputStream.read(buffer, 0, bufferSize);

      while (bytesRead > 0) {
        dataOutputStream.write(buffer, 0, bufferSize);
        bytesAvailable = fileInputStream.available();
        bufferSize = Math.min(bytesAvailable, maxBufferSize);
        bytesRead = fileInputStream.read(buffer, 0, bufferSize);
      }
      dataOutputStream.writeBytes(lineEnd);
      dataOutputStream.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);

      // Responses from the server (code and message)
      int serverResponseCode = connection.getResponseCode();
      String serverResponseMessage = connection.getResponseMessage();
      G.myLog("Res Code: " + serverResponseCode);
      G.myLog("Res Message: " + serverResponseMessage);
      if (serverResponseCode == 200 && listener != null) {
        listener.onComplateListener();
      }

      //close the streams //
      fileInputStream.close();
      dataOutputStream.flush();
      dataOutputStream.close();

    } catch (Exception e) {
      G.myLog("Uploads error: " + e);
    }
  }
});
thread.start();