I didn't say that stash() is the same, just that it's quite easy to use it to implement selective receive in Akka in combination with hot-swapping an actor's be

I didn't say that stash() is the same, just that it's quite easy to use it to implement selective receive in Akka in combination with hot-swapping an actor's behavior with become/unbecome. We use this pattern quite successfully in our code base.