It sounds like it is: https://cr.openjdk.java.net/~rpressler/loom/loom/sol1_part1.html https://cr.openjdk.java.net/~rpressler/loom/loom/sol1_part1.... But the

It sounds like it is: https://cr.openjdk.java.net/~rpressler/loom/loom/sol1_part1.html https://cr.openjdk.java.net/~rpressler/loom/loom/sol1_part1.... But the other side of that is that sometimes non-preemption is also a desirable property— like in JavaScript, or Python asyncio, knowing that you don't need to lock over every little manipulation of some shared data structure because you're never going to yield if you didn't explicitly await.