private static AuthenticationContextValidationResult toFailureResult() {
        return AuthenticationContextValidationResult.builder().success(false).build();
    }
This is {@link DefaultRequestedAuthenticationContextValidator}.

@author Misagh Moayyed
@since 6.0.0
core/cas-server-core-authentication-mfa-api/src/main/java/org/apereo/cas/authentication/DefaultRequestedAuthenticationContextValidator.java