RFR: 8306489: Open source AWT List related tests [v2]

[Abhishek Kumar]

> This PR is to open source List related AWT tests.

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

  Review comment update

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Changes:
  - all: https://git.openjdk.org/jdk/pull/13748/files
  - new: https://git.openjdk.org/jdk/pull/13748/files/d47ef223..28e36f0e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=13748&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=13748&range=00-01

  Stats: 17 lines in 3 files changed: 5 ins; 0 del; 12 mod
  Patch: https://git.openjdk.org/jdk/pull/13748.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13748/head:pull/13748

PR: https://git.openjdk.org/jdk/pull/13748