.Slf4jLogger] [helloworld-akka.actor.default-dispatcher-3] [] - Slf4jLogger started
[2019-11-19 19:24:39,374] [INFO] [cookbook.actor.introduction.Ping$] [helloworld-akka.actor.default-dispatcher-3] [akka://helloworld/user] - Started Pong actor and send message complete.
[2019-11-19 19:24:39,374] [INFO] [cookbook.actor.introduction.Pong$] [helloworld-akka.actor.default-dispatcher-6] [akka://helloworld/user/pong] - Receive ping message: Scala
[2019-11-19 19:24:39,375] [INFO] [cookbook.actor.introduction.Ping$