[jdk11u-dev] RFR: 8306752: Open source several container and component AWT tests

[Andrew Lu]

I backport this for parity with 11.0.24-oracle.

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Commit messages:
 - Backport 88d9ebf8e80eeead3e4a1494ba537530c16b75e1

Changes: https://git.openjdk.org/jdk11u-dev/pull/2528/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2528&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8306752
  Stats: 664 lines in 4 files changed: 664 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2528.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2528/head:pull/2528

PR: https://git.openjdk.org/jdk11u-dev/pull/2528