public static Boolean isRecaptchaForgotUsernameEnabled(final RequestContext requestContext) {
        return requestContext.getFlowScope().get("recaptchaForgotUsernameEnabled", Boolean.class);
    }
Is recaptcha forgot username enabled.

@param requestContext the request context
@return true/false
core/cas-server-core-web-api/src/main/java/org/apereo/cas/web/support/WebUtils.java