@Override
    protected void applyStatusCode() {
        final Integer statusCode = getRawStatusCode();
        if (statusCode != null) {
            armeriaHeaders.status(statusCode);
        } else {
            // If there is no status code specified, set 200 OK by default.
            armeriaHeaders.status(com.linecorp.armeria.common.HttpStatus.OK);
        }
    }
A {@link ServerHttpResponse} implementation for the Armeria HTTP server.
spring/boot3-webflux-autoconfigure/src/main/java/com/linecorp/armeria/spring/web/reactive/ArmeriaServerHttpResponse.java