[jdk25u] RFR: 8364235: Fix for JDK-8361447 breaks the alignment requirements for GuardedMemory

Fri Aug 8 00:46:42 UTC 2025

Hi all,

This pull request contains a backport of commit [078d0d49](https://github.com/openjdk/jdk/commit/078d0d4968e26bb7a15417f1c4e891869c69dc6c) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by David Holmes on 7 Aug 2025 and was reviewed by Daniel D. Daugherty, Johan Sjölen and Axel Boldt-Christmas.

Thanks!

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Commit messages:
 - Backport 078d0d4968e26bb7a15417f1c4e891869c69dc6c

Changes: https://git.openjdk.org/jdk25u/pull/75/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk25u&pr=75&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8364235
  Stats: 14 lines in 1 file changed: 8 ins; 2 del; 4 mod
  Patch: https://git.openjdk.org/jdk25u/pull/75.diff
  Fetch: git fetch https://git.openjdk.org/jdk25u.git pull/75/head:pull/75

PR: https://git.openjdk.org/jdk25u/pull/75