[jdk17u-dev] RFR: 8333446: Add tests for hierarchical container support [v2]

[Goetz Lindenmaier]

> I backport this to improve testing in 17 and make later backports clean and easier.
> Clean backport of the 21u commit.

Goetz Lindenmaier has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  backport cf8cfec3f149cb6bb27d0d31bb1c6817feb266f6

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Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/3926/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/3926/files/d8d04147..3a1cc18a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3926&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=3926&range=00-01

  Stats: 48 lines in 1 file changed: 4 ins; 30 del; 14 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/3926.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/3926/head:pull/3926

PR: https://git.openjdk.org/jdk17u-dev/pull/3926