> `Routes(ref(), ref())` is the equivalent of `...

# spring

[sdeleuze]

Routes(ref(), ref()) is the equivalent of Routes(ref<UserHandler>(), ref<MessageSource>()) (types are not required thanks to Kotlin type inference) where ref<UserHandler>() is a shortcut for applicationContext.getBean(UserHandler::class.java). We may provide an alternative syntax for autowiring classes by constructor which is pretty common in Koltin.