[jdk11u-dev] RFR: 8306954: Open source five Focus related tests

[Andrew Lu]

I backport this for parity with 11.0.21-oracle.

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Commit messages:
 - Backport 6d6d00b69cea47ccbe05a844db0fb6c384045caa

Changes: https://git.openjdk.org/jdk11u-dev/pull/2071/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2071&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8306954
  Stats: 962 lines in 5 files changed: 962 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2071.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2071/head:pull/2071

PR: https://git.openjdk.org/jdk11u-dev/pull/2071