docs: public ObjectInputStream getReader(String strFilename)
      {
          ObjectInputStream reader = null;
          try {
              InputStream is = null;
              if (strFilename.indexOf(':') == -1)
                  is = new FileInputStream(strFilename);
              else
              {
                  URL url = new URL(strFilename);
                  URLConnection urlc = url.openConnection();
                  is = urlc.getInputStream(); // To download
              }
              reader = new ObjectInputStream(is);
          } catch (IOException e) {
              e.printStackTrace();
          }
          return reader;
      }