@Override
    protected void doInitialize() {
        val flow = getLoginFlow();
        if (flow != null) {
            val action = createEvaluateAction(ACTION_ID_REMOTE_USER_AUTHENTICATION_ACTION);
            val actionState = createActionState(flow, CasWebflowConstants.ACTION_ID_REMOTE_TRUSTED_AUTHENTICATION, action);
            createTransitionForState(actionState, CasWebflowConstants.TRANSITION_ID_SUCCESS, CasWebflowConstants.STATE_ID_CREATE_TICKET_GRANTING_TICKET);
            createTransitionForState(actionState, CasWebflowConstants.TRANSITION_ID_GENERATE_SERVICE_TICKET, CasWebflowConstants.STATE_ID_GENERATE_SERVICE_TICKET);
            val currentStartState = getStartState(flow).getId();
            createTransitionForState(actionState, CasWebflowConstants.TRANSITION_ID_ERROR, currentStartState);
            createTransitionForState(actionState, CasWebflowConstants.TRANSITION_ID_AUTHENTICATION_FAILURE, CasWebflowConstants.STATE_ID_HANDLE_AUTHN_FAILURE);
            actionState.getExitActionList().add(createEvaluateAction(CasWebflowConstants.ACTION_ID_CLEAR_WEBFLOW_CREDENTIALS));

            setStartState(flow, actionState);
        }
    }
The {@link TrustedAuthenticationWebflowConfigurer} is responsible for
adjusting the CAS webflow context for trusted authn integration.

@author Misagh Moayyed
@since 4.2
support/cas-server-support-trusted-webflow/src/main/java/org/apereo/cas/web/flow/TrustedAuthenticationWebflowConfigurer.java