title: HttpURLConnection request being hit twice to the server for downloading file
body: <p>Following is my android code for downloading file from sever.</p>
  
  <pre><code>private String executeMultipart_download(String uri, String filepath)
              throws SocketTimeoutException, IOException {
          int count;
          System.setProperty("http.keepAlive", "false");
          // uri="https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcTzoeDGx78aM1InBnPLNb1209jyc2Ck0cRG9x113SalI9FsPiMXyrts4fdU";
          URL url = new URL(uri);
          HttpURLConnection connection = (HttpURLConnection) url.openConnection();
          connection.connect();
          int lenghtOfFile = connection.getContentLength();
          Log.d("File Download", "Lenght of file: " + lenghtOfFile);
  
          InputStream input = new BufferedInputStream(url.openStream());
          OutputStream output = new FileOutputStream(filepath);
          byte data[] = new byte[1024];
          long total = 0;
  
          while ((count = input.read(data)) != -1) {
              total += count;
              publishProgress("" + (int) ((total * 100) / lenghtOfFile));
              output.write(data, 0, count);
          }
          output.flush();
          output.close();
          input.close();
          httpStatus = connection.getResponseCode();
          String statusMessage = connection.getResponseMessage();
          connection.disconnect();
          return statusMessage;
      }
  </code></pre>
  
  <p>I have debugged this code. This function is called only once even if it hits server twice. 
  Is their any error in this code. </p>
  
  <p>Thanks </p>