How do you adjust json config in Quarkus?

I am attempting to add a mixin to the Jackson's ObjectMapper in a Quarkus project. I have some code that looks likes this:

@Provider
public class ObjectMapperContextResolver implements ContextResolver<ObjectMapper> {

    private final ObjectMapper mapper;

    public ObjectMapperContextResolver() {
        this.mapper = createObjectMapper();
    }

    @Override
    public ObjectMapper getContext(Class<?> type) {
        return mapper;
    }

    private ObjectMapper createObjectMapper() {
        ObjectMapper mapper = new ObjectMapper();
        mapper.addMixIn(MyModel.class, MyMixin.class);
        return mapper;
    }
}

This code worked perfectly in a Thorntail project I had. For some reason, Quarkus isn't picking this up, and the object mapper is not affected. Is there something different I have to do with the Quarkus CDI?

Updates

Apparently I was a little confused about the implementation. I should be using the Json-B api. I figured out how to change the configuration for Json-B and posted it below.

Instead of providing an ObjectMapper, you can provide a JsonbConfig so that you can customize serialization/deserialization.

Here is what I ended up using:

@Provider
public class JsonConfig implements ContextResolver<Jsonb> {

    @Override
    public Jsonb getContext(Class type) {
        JsonbConfig config = new JsonbConfig();
        config.withPropertyVisibilityStrategy(new IgnoreMethods());
        return JsonbBuilder.create(config);
    }
   }

  class IgnoreMethods implements PropertyVisibilityStrategy {

    @Override
    public boolean isVisible(Field field) {
        return true;
    }

    @Override
    public boolean isVisible(Method method) {
        return false;
    }
}

This allows you to customize your JsonbConfig. Here, mine specifically prevents access of methods for serialization/deserialization. On Quarkus with Panache, this prevents isPersistent from appearing in your JSON output.