RFR: 8374322: TestMemoryWithSubgroups.java fails Permission denied [v2]

[SendaoYan]

> Hi all,
> 
> Test containers/docker/TestMemoryWithSubgroups.java fails on some docker images. If the default user inside docker is non root user, test will report fails "mkdir: cannot create directory '/sys/fs/cgroup/memory': Permission denied". I think it's better to throw SkippedException rather than report failure when it's do not have root permission inside docker.
> 
> Change has been verified locally on ubuntu22(cgroup v2). Test-fix only, no risk.

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

  Revert "8374322: TestMemoryWithSubgroups.java fails Permission denied"
  
  This reverts commit be21ae5d78e63673cfaaa79be70d47f7331f5298.

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/28975/files
  - new: https://git.openjdk.org/jdk/pull/28975/files/be21ae5d..0c8f3101

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=28975&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=28975&range=00-01

  Stats: 11 lines in 1 file changed: 0 ins; 7 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/28975.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28975/head:pull/28975

PR: https://git.openjdk.org/jdk/pull/28975