[jdk17u-dev] RFR: 8360288: Shenandoah crash at size_given_klass in op_degenerated

[William Kemper]

Not clean.

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Commit messages:
 - 8360288: Shenandoah crash at size_given_klass in op_degenerated

Changes: https://git.openjdk.org/jdk17u-dev/pull/4003/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=4003&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8360288
  Stats: 20 lines in 2 files changed: 4 ins; 7 del; 9 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/4003.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/4003/head:pull/4003

PR: https://git.openjdk.org/jdk17u-dev/pull/4003