[jdk17u-dev] RFR: 8339725: Concurrent GC crashed due to GetMethodDeclaringClass [v2]

[Francesco Andreuzzi]

> Backport JDK-8339725. Applies almost cleanly. Fixes a crash in concurrent GC due to GetMethodDeclaringClass.
> 
> I ran the reproducer against jdk17, and I confirm that the crash applies to this version too.

Francesco Andreuzzi has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'openjdk:master' into JDK-8339725-gc-crash-get-method-declaring-class
 - Backport c91fa278fe17ab204beef0fcef1ada6dd0bc37bb

-------------

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/3646/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/3646/files/2f06247b..45f2eb42

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3646&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3646&range=00-01

  Stats: 8368 lines in 352 files changed: 4171 ins; 3299 del; 898 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3646.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3646/head:pull/3646

PR: https://git.openjdk.org/jdk17u-dev/pull/3646