About Question enthuware.ocpjp.v8.2.1729 :

[badbishop]

I think I saw exactly this question in another "Standard" test. Is how it is supposed to be, or do you want me to look for the duplicate?

[admin]

The other one is 2.1730. But there is a slight difference. 2.1730 has public static volatile int counter = 0; while 2.1729 has public static int counter = 0;
The explanation is also different.

thank you for your feedback!
HTH,
Paul.