code: public String getRequestURI() {
      if ((message == null) || (((Request) message).getRequestURI() == null)) {
        return "";
      }
  
      return ((Request) message).getRequestURI().toString();
    }
docs: Returns the request URI line of the request message or an empty string if there isn't one. The
  request URI indicates the user or service to which this request is addressed.
  
  @return the Request URI line as a string or "" if there isn't one