docs: @Nonnull
    public static String getRequestServletPath (@Nullable final HttpServletRequest aRequest)
    {
      String ret = "";
      if (aRequest != null)
        try
        {
          if (aRequest.isAsyncSupported () && aRequest.isAsyncStarted ())
            ret = (String) aRequest.getAttribute (AsyncContext.ASYNC_SERVLET_PATH);
          else
            ret = aRequest.getServletPath ();
        }
        catch (final UnsupportedOperationException ex)
        {
          // Offline request - fall through
        }
        catch (final Exception ex)
        {
          // fall through
          if (isLogExceptions ())
            if (LOGGER.isWarnEnabled ())
              LOGGER.warn ("[ServletHelper] Failed to determine servlet path of HTTP request", ex);
        }
      return ret;
    }