docs: protected void createServiceUnauthorizedCheckDecisionState(final Flow flow) {
          val decision = createDecisionState(flow, CasWebflowConstants.STATE_ID_SERVICE_UNAUTHZ_CHECK,
              "flowScope.unauthorizedRedirectUrl != null",
              CasWebflowConstants.STATE_ID_VIEW_REDIR_UNAUTHZ_URL,
              CasWebflowConstants.STATE_ID_VIEW_SERVICE_ERROR);
          decision.getEntryActionList().add(createEvaluateAction("setServiceUnauthorizedRedirectUrlAction"));
      }