RFR: JDK-8302129: Make MetaspaceReclaimPolicy a diagnostic switch [v2]

[Thomas Stuefe]

On Tue, 14 Feb 2023 16:40:27 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> Thomas Stuefe has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   fix release tests
>
> Looks good!

Thanks @coleenp and @dholmes-ora.

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

PR: https://git.openjdk.org/jdk/pull/12540