docs: @Nullable
    public static String getPathInfo (@Nonnull final HttpServletRequest aHttpRequest)
    {
      ValueEnforcer.notNull (aHttpRequest, "HttpRequest");
  
      final String sPathInfo = ServletHelper.getRequestPathInfo (aHttpRequest);
      if (StringHelper.hasNoText (sPathInfo))
        return sPathInfo;
  
      return getWithoutSessionID (sPathInfo);
    }