OndrejSpanel

import io.bullet.borer._

object BorerAnyKey {
  trait MapKeyCodec[K] {
    def keyToString(k: K): String
    def keyFromString(s: String): K
  }

  implicit object MapKeyCodecString extends MapKeyCodec[String] {
    override def keyToString(k: String): String = k

OndrejSpanel

object HashTest extends App {
  import scala.collection.generic.CanBuildFrom
  import scala.collection.immutable.HashMap

  type HM = HashMap[Int, String]
  def updated(map: HM, key: Int, value: String) = {
    map.updated(key, value)
  }

  def builder(m: HM, key: Int, value: String)(implicit cbf: CanBuildFrom[HM, (Int, String), HM]) = {

OndrejSpanel

package test

import com.fasterxml.jackson.databind.ObjectMapper
import com.fasterxml.jackson.module.scala.DefaultScalaModule

object Main extends App {

  val mapper = new ObjectMapper()
  mapper.registerModule(DefaultScalaModule)