<i18n dev> RFR: JDK-8319569: Several java/util tests should be updated to accept VM flags. [v2]

[Justin Lu]

> Please review this PR which allows these _j.util_ tests to launch new JVM processes with VM flags,
> 
> This is primarily done using by switching to `ProcessTools::createTestJavaProcessBuilder`.
> 
> _PropertiesTest.sh_ was updated with `@requires vm.flagless`.

Justin Lu has updated the pull request incrementally with one additional commit since the last revision:

  reflect review comments

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/16705/files
  - new: https://git.openjdk.org/jdk/pull/16705/files/e6a72c4c..30c735d5

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=16705&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=16705&range=00-01

  Stats: 13 lines in 6 files changed: 0 ins; 5 del; 8 mod
  Patch: https://git.openjdk.org/jdk/pull/16705.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16705/head:pull/16705

PR: https://git.openjdk.org/jdk/pull/16705