public ServiceRequestContextBuilder routingResult(RoutingResult routingResult) {
        this.routingResult = requireNonNull(routingResult, "routingResult");
        return this;
    }
Sets the {@link RoutingResult} of the request. If not set, it is auto-generated from the request.
core/src/main/java/com/linecorp/armeria/server/ServiceRequestContextBuilder.java