I tried to overcome the JVM type erasure by storing the Type at compile time, like so:

data class ResultWrapper<out T>(val request: RequestInfo, val obs: T, val typeOfResult : KClass<*>? = null)

However doing a

when

on the

typeOfResult

field does not work:

when (item.typeOfResult) {
             is Enemy -> {
                  messages.add("Received instance of type ${item.typeOfResult.simpleName} !")
              }

Any ideas/suggestions?

enemy is not really a type of kclass. would it be just

when (item.typeOfResult) {
            Enemy::class -> {
          }
        }

?

This was my first reaction too, but adding

::class

produces a compile error, which I cannot understand.

val clazz : KClass<*>? = null
    when(clazz)
    {
        String::class -> {}
    }

Are you sure? This seems to work.

Oh, my mistake is that I should not use

is

in the check