[jdk21u-dev] RFR: 8339725: Concurrent GC crashed due to GetMethodDeclaringClass

[Liang Mao]

Backport of fixing concurrent GC crashed due to GetMethodDeclaringClass. Not clean because of make file.

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Commit messages:
 - Backport c91fa278fe17ab204beef0fcef1ada6dd0bc37bb

Changes: https://git.openjdk.org/jdk21u-dev/pull/1004/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1004&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8339725
  Stats: 244 lines in 5 files changed: 241 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1004.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1004/head:pull/1004

PR: https://git.openjdk.org/jdk21u-dev/pull/1004