NetBeans / Java / New hint: Thread.sleep called in loop

Question

In NetBeans, there\'s a new hint that says: Thread.sleep called in loop.

Question 1: How/when can it be a problem to sleep in a loo

Answer 1

How/when can it be a problem to sleep in a loop?
People sometimes employ it in place of proper synchronization methods (like wait/notify).

If it's a problem, what should I do instead?
Depends on what you're doing. Although it's dificult for me to imagine situation where doing this is the best approach, I guess that's possible too.

You can check Sun's concurrency tutorial on this subject.