Integrated: 8269417: Minor clarification on NonblockingQueue utility

[Man Cao]

On Sat, 26 Jun 2021 02:29:20 GMT, Man Cao <manc at openjdk.org> wrote:

> Hi,
> 
> Could you review this change mainly based on the comments in https://github.com/openjdk/jdk/pull/4379?
> I also added an assertion to ensure and better understand why the Atomic::store() in append() is correct.
> 
> Stress tested with fastdebug build with:
> $ make test TEST="gtest:NonblockingQueueTestBasics gtest:NonblockingQueueTest" GTEST="REPEAT=-1"

This pull request has now been integrated.

Changeset: bb42d751
Author:    Man Cao <manc at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/bb42d75161cdf5d9ef2b1b227000df5165ab1198
Stats:     25 lines in 2 files changed: 15 ins; 5 del; 5 mod

8269417: Minor clarification on NonblockingQueue utility

Reviewed-by: kbarrett, iwalulya

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PR: https://git.openjdk.java.net/jdk/pull/4600