Bad.scala

object Language {
  def langs: Try[Seq[Language]] = {
    Try { val m = for {
        l<- current.configuration.getConfig("langs")
    a <- l.getConfig("mapping")
  } yield a
  m.get.keys.map { c=>Language(c, m.get.getString(c).get)}.toList.sortBy(_.c)}
  }}

Good.scala

object Language {
  /**
   * Gets a list of all languages supported from the configuration file. The "langs.mapping" field
   * is a JSON object with keys as 2 character country codes and the values as full, native language
   * names.
   */
  def getSupportedLanguages: Try[Seq[Language]] = {
    Try {
      val languageMappings = for {
        langs <- current.configuration.getConfig("langs")
        mapping <- langs.getConfig("mapping")
      } yield mapping
      val countryCodes = languageMappings.get.keys

      countryCodes.map { code =>
        Language(code, languageMappings.get.getString(code).get)
      }.toList.sortBy(_.code)
    }
  }
}