[jdk11u-dev] RFR: 8293563: [macos-aarch64] SA core file tests failing with sun.jvm.hotspot.oops.UnknownOopException [v3]

[Christoph Langer]

> The backport of [JDK-8248194](https://bugs.openjdk.org/browse/JDK-8248194) introduced the testing of core files in test/hotspot/jtreg/serviceability/sa/ClhsdbFindPC.java. This can cause issues which we are seeing on MacOS arm64. With this backport, these seem to be gone.
> 
> The fix does not exactly fit into the 11u-dev codebase, so I had to make several adpatations.

Christoph Langer has updated the pull request incrementally with one additional commit since the last revision:

  reenable some tests on macos-aarch64

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

Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/2698/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/2698/files/a81424e9..c0eea458

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2698&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2698&range=01-02

  Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2698.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2698/head:pull/2698

PR: https://git.openjdk.org/jdk11u-dev/pull/2698