docs: public static boolean isFileBasedRequest (@Nonnull final String sServletPath)
    {
      final int nLastDot = sServletPath.lastIndexOf ('.');
      if (nLastDot < 0)
        return false;
      final int nLastSlash = sServletPath.lastIndexOf ('/');
      if (nLastSlash < 0)
      {
        // for e.g. "abc.def"
        return true;
      }
  
      // true for e.g. "/path/paths/abc.def"
      // false for e.g. "/path/pa.th/def"
      return nLastDot > nLastSlash;
    }