@FeatureGroup not working in kotlin enum based features

[jakublabno]

Grouping features by @FeatureGroup is not working in kotlin

@Configuration
class FeaturesConfiguration {

    @Bean
    fun featureProvider() = EnumClassFeatureProvider(Features::class.java)
...

@FeatureGroup
@Label("Fancy group")
annotation class MyFeaturesGroup

enum class Features {

        @MyFeaturesGroup
        @EnabledByDefault
        ANY;

        fun isActive(): Boolean {
            return FeatureContext.getFeatureManager().isActive { name }
        }
    }

Console shows all ungrupped