code: @Override
      public String getReverseRouteFor(String className, String method) {
          return getReverseRouteFor(className, method, null);
      }
docs: Gets the url of the route handled by the specified action method. The action does not takes parameters. This
  implementation delegates to {@link #getReverseRouteFor(String, String, java.util.Map)}.
  
  @param className the controller class
  @param method    the controller method
  @return the url, {@literal null} if the action method is not found