Comment by klabb3

Did you see the examples? Even with the blocking threaded style the Java versions gave me nightmares. And they didn't even bring up a cancelation example (not 100% sure on that). Cancelation and subsequent graceful shutdown is one of the hardest concurrency problems that (a) you are very likely to need in practice and (b) conveniently often are left out of example code. Heck it isn't even great in Go (too explicit imo) but at least they solved it.