@Override
    protected void prepareForTicketValidation(final HttpServletRequest request, final WebApplicationService service, final String serviceTicketId) {
        super.prepareForTicketValidation(request, service, serviceTicketId);
        LOGGER.debug("Preparing to validate ticket [{}] for service [{}] via [{}]. Do note that this validation event "
                + "is not equipped to release principal attributes to applications. To access the authenticated "
                + "principal along with attributes, invoke the [{}] endpoint instead.",
            CasProtocolConstants.ENDPOINT_VALIDATE,
            serviceTicketId, service, CasProtocolConstants.ENDPOINT_SERVICE_VALIDATE_V3);
    }
Handle model and view.

@param request  the request
@param response the response
@return the model and view
@throws Exception the exception
support/cas-server-support-validation-core/src/main/java/org/apereo/cas/web/v1/LegacyValidateController.java