Missing hints for automatic menus

[mshabarov]

Description of the bug

@marcushellberg :
I'm getting this when trying to run an app as a GraalVM native image. I can't reproduce it in a simple app, so I haven't yet filed an issue. Any pointers on what may be going wrong? Looks like we may be missing some hints again

2024-11-02T17:44:57.084-04:00  WARN 61021 --- [nps] [           main] c.v.flow.internal.menu.MenuRegistry      : Failed load file-routes.json from /META-INF/VAADIN/file-routes.json

com.fasterxml.jackson.databind.exc.InvalidFormatException: Cannot deserialize value of type `com.vaadin.flow.server.menu.RouteParamType` from String "req": not one of the values accepted for Enum class: [OPTIONAL, WILDCARD, REQUIRED]
 at [Source: REDACTED (`StreamReadFeature.INCLUDE_SOURCE_IN_LOCATION` disabled); line: 10, column: 21] (through reference chain: java.util.ArrayList[0]->com.vaadin.flow.server.menu.AvailableViewInfo["children"]->java.util.ArrayList[0]->com.vaadin.flow.server.menu.AvailableViewInfo["params"]->java.util.LinkedHashMap[":token"])

Expected behavior

No warnings and errors.

Minimal reproducible example

No info, but probably Vaadin 24.6 application that uses FS router and auto menus feature, also compiled to GraalVM native image.

Versions

Vaadin 24.6 pre

[mcollovati]

It can be reproduced with the flow-hilla-hybrid-example, by adding an optional parameter view route.
For example, create a src/main/frontend/views/products/{{product}}.tsx file with the following content

import { useParams } from 'react-router-dom';
import type { ViewConfig } from "@vaadin/hilla-file-router/types.js";

export const config: ViewConfig = {
    loginRequired: false,
    menu: {
        title: "Product",
        icon: 'vaadin:info'
    }
};

export default function ProductView() {
    const { productId } = useParams();

    return (<>
        <span>{productId}</span>
    </>)
}

Then build the native executable with mvn -Pproduction -Pnative native:compile
When starting the application, you should see the error.