Pickle.scala

sealed trait Drink

case object Beer extends Drink

case object Wine extends Drink

case class OrderDrinkV1(drink: Drink)

case class DrinkOrderedV1(drink: Drink)

object TestApp extends App {
  import scala.pickling.Defaults._
  import scala.pickling.json._

  val order = OrderDrinkV1(Beer)
  val json = order.pickle.value
  val anyRefValue = JSONPickle(json).unpickle[AnyRef]
  val drink = anyRefValue.asInstanceOf[OrderDrinkV1].drink
  
  // ok 
  assert(drink.getClass == Beer.getClass)
  
  // fails and would work if the unpickle would target OrderDrinkV1 and not AnyRef
  assert(drink == Beer)
}