Bug in serializing composite structures like a List within a Map

[debasishg]

Suppose we have a class like ..

@BeanInfo
case class MapOfListOfString(securityTypes: Map[String, List[String]]) {
def this() = this(Map.empty[String, List[String]])
}

In the de-serialization the contents of the list are not properly de-serialized. e.g. for a List[String], we will have JsString as elements of the list.