Plugin won't recognize @Named class

I was trying to implement this pattern from documentation:

As for mapper itself, it is working fine and dandy. The plugin, however, seems to have problem with finding the annotated class which contains annotated mapping method. Error description is provided:

"Unknown @ Named reference 'TranslationMapper' ".

Reference for "TranslationsToString" is found properly.

@Mapper(uses = TranslationMapper.class)
public interface PrimaryClassMapper {
    @Mapping(source = "primary.id", target = "id")
    @Mapping(
            source = "primary.translatedNames",
            target = "name",
            qualifiedByName = {"TranslationMapper", "TranslationsToString"})
    SecondaryClass toSecondaryClass(PrimaryClass primary, @Context Language targetLanguage);
}

@Named("TranslationMapper")
public class TranslationMapper {
    @Named("TranslationsToString")
    public String resolveTranslatedText(
            List<TranslationDto> translations, @Context Language targetLanguage) {
        //some fancy logic
    }
}

Start by reproducing the warning with the PrimaryClassMapper and TranslationMapper examples in the issue, focusing on the class-level and method-level @Named annotations and the qualifiedByName reference. Done means the plugin recognizes the class-level "TranslationMapper" reference without reporting it as unknown while still resolving "TranslationsToString".