[jdk23u] RFR: 8333728: ubsan: shenandoahFreeSet.cpp:1347:24: runtime error: division by zero

[Matthias Baesken]

8333728: ubsan: shenandoahFreeSet.cpp:1347:24: runtime error: division by zero

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Commit messages:
 - Backport b5575942027281166676678e2081b024ec572644

Changes: https://git.openjdk.org/jdk23u/pull/134/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk23u&pr=134&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8333728
  Stats: 3 lines in 1 file changed: 0 ins; 2 del; 1 mod
  Patch: https://git.openjdk.org/jdk23u/pull/134.diff
  Fetch: git fetch https://git.openjdk.org/jdk23u.git pull/134/head:pull/134

PR: https://git.openjdk.org/jdk23u/pull/134