RFR: 8340719: Open source AWT List tests [v2]

[Prasanta Sadhukhan]

> Opensource few AWT List tests...

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

  Formatting

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Changes:
  - all: https://git.openjdk.org/jdk/pull/21253/files
  - new: https://git.openjdk.org/jdk/pull/21253/files/df6b2260..6fea3fca

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21253&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21253&range=00-01

  Stats: 8 lines in 3 files changed: 3 ins; 1 del; 4 mod
  Patch: https://git.openjdk.org/jdk/pull/21253.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21253/head:pull/21253

PR: https://git.openjdk.org/jdk/pull/21253