RFR: 8312132: Add tracking of multiple address spaces in NMT [v54]

[Thomas Stuefe]

On Tue, 30 Apr 2024 17:11:35 GMT, Gerard Ziemski <gziemski at openjdk.org> wrote:

>> Googling for `IntervalTree` returns useful links. I like it.
>
> If the class is general enough, then perhaps it should be moved into `shared/utilities` so others can use it as well? A candidate for a follow up later?

Yea, at least long term. For me its fine in another RFE too, or if we see a second use for this class. (One possibility I mentioned to StefanK recently was using this class to track zgc memory pages, which is currently done with linked lists).

Up to you, @jdksjolen

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PR Review Comment: https://git.openjdk.org/jdk/pull/18289#discussion_r1585247218