RFR: 8328944: NMT reports "unknown" memory [v4]

[Johan Sjölen]

On Thu, 21 Nov 2024 21:09:33 GMT, Gerard Ziemski <gziemski at openjdk.org> wrote:

>> We use `mtNone` value in several functions default parameters, which may show up in NMT reports.
>> 
>> We address this, by avoiding using `mtNone`.
>> 
>> This fix only addresses the cases covered by the issue. I am not trying to replace every single `mtNone` here, but eventually the goal would be to do just that.
>> 
>> Testing: passes MARCH5 tier1-5
>
> Gerard Ziemski has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Stefan's feedback

This LGTM and the chosen categories seem to make sense.

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Marked as reviewed by jsjolen (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/21843#pullrequestreview-2459413170