The error .exc.InvalidDefinitionException: Cannot construct instance of . A sealed class is a class that can only be subclassed within the same file where it’s declared Subclasses must be declared within the same file as the sealed class Sealed classes are. This consists of three parts: Plugin Compiler Library. Val response = makeXMLHttpRequest(url,userSerial, HttpMethod.POST, CTX_PRINT_SHOP, 'testDeep') In this section, we will look at the rialization library. The following code still just pushing out the success portion of the sealed class testSealed():TestSealedClass>' rialization - kotlinx-serialization Package rialization Basic core concepts and annotations that set up serialization process.

With the when keyword, working with sealed classes can be simple. To serialize/deserialize Kotlin sealed classes using built-in serialization libraries such as GSON, Jackson, or Moshi, you can follow these steps: Define. I have such kind of sealed class in my code, and compiler says me: Serializable class has duplicate serial name of property 'id', either in the class itself or its supertypes. Trying it out in a kotlin multi-platform project Sealed classes are one of Kotlin’s powerful tools to express hierarchies and precisely enumerate the form that data takes.

Override val descriptor: SerialDescriptor = surrogateSerializer.I was able to remove the dependency on :jackson-module-kotlin:2.10.3 and the project still worked. Private val surrogateSerializer = rializer(tSerializer) for 'Error' data: T? = exceptionMessage: String? = null The annotation is not necessary, but it avoids serializing 'data = null' ) : KSerializer> class ServiceResultSurrogate( = ServiceResultSerializer::class)ĭata class Success(val data: T) : ServiceResult()ĭata class Error(val exceptionMessage: String?) : ServiceResult() For the sake of simplicity in the example I only represent the exception message. As Animesh Sahu already mentioned there is an issue for this topic that is still open, but the solution using a surrogate suggested by Михаил Нафталь for serialization of Error can actually be used also to serialize the polymorphic ServiceResult, by creating a surrogate that mixes the fields of Success and Error. Sealed classes represent a restricted class hierarchy.

Sealed class serializable kotlin