Scala pattern matching

pattern.scala

import java.util
import java.util.{Map => JMap, List => JList}

import scala.reflect.runtime.universe._

object PatternMatching extends App {

  val o: JMap[String, Any] = new util.HashMap[String, Any]()
  val o2: JList[JMap[String, Any]] = new util.ArrayList[JMap[String, Any]]()

  pmatch(o)
  pmatch(o2)

  def pmatch[T:TypeTag](o: T) = typeTag[T].tpe match {
    case t if t =:= typeOf[JMap[String, Any]] => println(s"MAP: $t")
    case t if t =:= typeOf[JList[JMap[String, Any]]] => println(s"LIST: $t")
    case t => println(t)
  }

}