protected String getFinalResponseEventId(final WebApplicationService service, final Response response, final RequestContext requestContext) {
        val eventId = response.responseType().name().toLowerCase(Locale.ENGLISH);
        LOGGER.debug("Signaling flow to redirect to service [{}] via event [{}]", service, eventId);
        return eventId;
    }
This is {@link RedirectToServiceAction}.

@author Misagh Moayyed
@since 5.1.0
core/cas-server-core-webflow-api/src/main/java/org/apereo/cas/web/flow/actions/RedirectToServiceAction.java