When does System.out not appear in the Java console?

Question

I understood that anything to standard out (System.out) would appear in the Java Console window (when it\'s enabled). I spotted somewhere though that there might be

Answer 1

One situation I can think of is to invoke System.setOut(null) (orSystem.setOut(any OutputStream other than System.out or System.err)) then the console, if exists, would show nothing.