[jdk17u-dev] RFR: 8317228: GC: Make TestXXXHeapSizeFlags use createTestJvm [v2]

[Andrew Lu]

> I backport this for parity with 17.0.13-oracle.
> String.splitWithDelimiters not support in jdk17

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

  restores the removed key "external-dep"

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

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/2724/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/2724/files/c33719a5..35dc04ed

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2724&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=2724&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/2724.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/2724/head:pull/2724

PR: https://git.openjdk.org/jdk17u-dev/pull/2724