When is a CachedThreadPool unsuitable?
What does ExecutorService's submit() method do?
Why avoid creating threads manually in high-traffic apps?
How does ExecutorService shutdown gracefully?
What happens when a FixedThreadPool is full?
What happens to tasks after shutdownNow()?
Why does submit() in ExecutorService matter in this design?
Why prefer ExecutorService over raw Threads?
Why can ExecutorService shutdown become a real problem?
How does ExecutorService handle exceptions?