1. Publisher sends all requested objects --> Publisher has 10 available object, but subscriber requested 5, so 5 will be sent --> NOT MORE
2. Publisher sends all the objects it has (onComplete) subscriber and the subscription will be canceled
BlockHound will transparently instrument the JVM classes and intercept blocking calls (e.g. IO) if they are performed from threads marked as "non-blocking operations only" (ie. threads implementing Reactor's NonBlocking marker interface, like those started by Schedulers.parallel()). If and when this happens (but remember, this should never happen!:stuck_out_tongue_winking_eye:), an error will be thrown.