[jdk11u-dev] RFR: 8306489: Open source AWT List related tests

[Antonio Vieiro]

Backport of [JDK-8306489](https://bugs.openjdk.org/browse/JDK-8306489)

Clean backport. Tested on Linux/Gnome and Windows 11 (there's a Windows-specific test). All pass.

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Commit messages:
 - Backport 82a8e91ef7c3b397f9cce3854722cfe4bace6f2e

Changes: https://git.openjdk.org/jdk11u-dev/pull/2779/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2779&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8306489
  Stats: 824 lines in 7 files changed: 824 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2779.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2779/head:pull/2779

PR: https://git.openjdk.org/jdk11u-dev/pull/2779