RFR: 8280832: Update usage docs for NonblockingQueue [v3]

[David Holmes]

On Thu, 10 Feb 2022 10:12:44 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

>> Please review this update of the usage and implementation comments for
>> NonblockingQueue to discuss the ABA issue in push/append operations.
>
> Kim Barrett has updated the pull request incrementally with one additional commit since the last revision:
> 
>   dholmes review

Thanks - reads well.

David

-------------

Marked as reviewed by dholmes (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/7393