[jdk21u-dev] RFR: 8340084: Open source AWT Frame related tests [v2]

[Goetz Lindenmaier]

> I backport this for parity with 21.0.8-oracle

Goetz Lindenmaier 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 backport-GoeLin-bc7c0dc4-master
 - Backport bc7c0dc45dcd66d24ece8ebbd5c1b25e131eae67

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

Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/1607/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/1607/files/53ac9449..68df8e2d

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1607&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=1607&range=00-01

  Stats: 3 lines in 1 file changed: 3 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/1607.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/1607/head:pull/1607

PR: https://git.openjdk.org/jdk21u-dev/pull/1607