playframework - Playframework グローバルについて

Question

Global.scala 内にいくつかのコードを追加し、application.conf application.global=Global

object Global extends WithFilters(new GzipFilter()) with GlobalSettings {
  override def onStart(app: Application) {
    Logger.info("Application started.")
  }

  override def onStop(app: Application) {
    Logger.info("Application shutdown...")
  }
}

conole で 3 回実行するのはなぜですか?

[info] application - Application started.
[info] application - Application started.
[info] application - Application started.
[info] wobo - Application started (Dev)
[WARN] [10/21/2013 15:54:50.591] [New I/O worker #1] [EventStream(akka://play)]akka.event-handlers] config is deprecated, use [akka.loggers]
[info] application - Application shutdown...
[info] application - Application shutdown...
[info] application - Application shutdown...