RFR: 8226416: MonitorUsedDeflationThreshold can cause repeated async deflation requests

[Daniel D.Daugherty]

On Fri, 8 Jan 2021 13:57:24 GMT, Daniel D. Daugherty <dcubed at openjdk.org> wrote:

>> Note: I'm testing out stacking patches in Git so there are commits for
>> https://bugs.openjdk.java.net/browse/JDK-8259397 and
>> https://bugs.openjdk.java.net/browse/JDK-8259349 that show up in this PR.
>> 
>> This is the correct commit for this PR review: https://github.com/openjdk/jdk/commit/af5c3fec96d1d45af5881947d366e22cb8962dc3
>
> I was hoping that each subsequent PR would be baselined on the previous
> branch so that each PR would only have a single commit in it. It didn't work
> out that way so that's why I included this blurb in a comment:
> 
>> This is the correct commit for this PR review: https://github.com/openjdk/jdk/commit/af5c3fec96d1d45af5881947d366e22cb8962dc3

I've updated this fix with similar changes that were requested in the
JDK-8259349 code review cycle. I've also taken the standalone test
created back in June 2019 and converted it into a JTREG style test
with automated checks for the proper passing conditions.

Any takers for a review?

Note: At this point, the other two fixes that preceded this one have
been integrated so only this fix shows up in the review links.

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

PR: https://git.openjdk.java.net/jdk/pull/1993