springfox(swagger2) does not work with GsonHttpMessageConverterConfig

Question

What I am trying to build is a spring-boot (v1.2.3) application and expose my Rest API with SpringFox(swagger2) v2.0.0

my Swagger Spring config

Answer 1

This is Oleg Majewski's solution for SpringFox + Gson problem translated to Kotlin:

internal class SpringfoxJsonToGsonAdapter : JsonSerializer {

    override fun serialize(json: Json, type: Type, context: JsonSerializationContext): JsonElement
            = JsonParser().parse(json.value())

}

@Configuration
open class GsonHttpMessageConverterConfig {

    @Bean
    open fun gsonHttpMessageConverter(): GsonHttpMessageConverter {
        val converter = GsonHttpMessageConverter()
        converter.gson = gson()
        return converter
    }

    private fun gson(): Gson = GsonBuilder()
            .registerTypeAdapter(Json::class.java, SpringfoxJsonToGsonAdapter())
            .create()

}