Quarkus/Smallrye OpenAPI info properties not working

[spartanhooah]

I'm playing around with Quarkus and am looking at its OpenAPI implementation. Most of it works fine, but the quarkus.smallrye-openapi.info* properties such as info-title do not work. That is, regardless of what values I set them to, those values do not show up in either the JSON/YAML or the UI. If I instead use annotations (@OpenAPIDefinition and @Info) then these OpenAPI properties do show up in both locations. Example project is at https://github.com/spartanhooah/game-example

It seems this is only an issue if I use yml for my application properties like

quarkus:
  smallrye-openapi:
    enabled: true
    info-title: My API
    info-version: 1.0.1
    info-description: API documentation for my application

If I instead use a .properties file, it works:

quarkus.swagger-ui.enable=true
quarkus.smallrye-openapi.enable=true
quarkus.smallrye-openapi.info-title=My Api

[quarkus-bot[bot]]

/cc @EricWittmann (openapi), @Ladicek (smallrye), @MikeEdgar (openapi), @jmartisk (smallrye), @phillip-kruger (openapi,smallrye), @radcortez (smallrye)

[MikeEdgar]

I found the same results where the .properties works but the YAML configuration does not. Maybe an issue in the config handling?

[spartanhooah]

Yup, it's not limited to this particular key, either. I also found it with the swagger-ui key: #22913

[radcortez]

To use YAML, you need to add the extension implementation("io.quarkus:quarkus-config-yaml"): https://quarkus.io/guides/config-yaml

After this, it works as expected.