Something

object Test {
  
  class Generic[T <: AnyRef](obj: T) {
    var list = List[T]()
    
    val model = new VarModel(obj, setter)
    model.setObject(new java.util.Date())
    def setter(o: T) {
      list ::= o
    }
  }

  def main(args: Array[String]) {
    val generic = new Generic("test")
    println(generic.list)
  }
}