[jdk21] RFR: 8313593: Generational ZGC: NMT assert when the heap fails to expand

Fri Aug 4 06:40:43 UTC 2023

Hi all,

This pull request contains a backport of commit [19e2c8c3](https://github.com/openjdk/jdk/commit/19e2c8c321823c056091e6e9f6c3d0db7ba9ec2b) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Stefan Karlsson on 2 Aug 2023 and was reviewed by Thomas Stuefe, Thomas Schatzl and Erik Österlund.

Thanks!

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Commit messages:
 - Backport 19e2c8c321823c056091e6e9f6c3d0db7ba9ec2b

Changes: https://git.openjdk.org/jdk21/pull/163/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk21&pr=163&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8313593
  Stats: 6 lines in 1 file changed: 4 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk21/pull/163.diff
  Fetch: git fetch https://git.openjdk.org/jdk21.git pull/163/head:pull/163

PR: https://git.openjdk.org/jdk21/pull/163