https://www.playframework.com/documentation/2.5.x/Home
http://www.codepreference.com/2016/07/customizing-json-mapping-in-play.html
https://www.playframework.com/documentation/2.5.x/JavaDependencyInjection
https://www.playframework.com/documentation/2.5.x/JavaWS
https://www.playframework.com/documentation/2.5.x/SettingsNetty