RFR: 8351566: Consolidate third party artifacts used in tests

[Mikhail Yankelevich]

8351566: Consolidate third party artifacts used in tests

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Commit messages:
 - merge, docks and changind to use fetchOne
 - merging master
 - merge conflict fix
 - changed method flow, made unused methods private
 - JDK-8351566: Consolidate third party artifacts used in tests

Changes: https://git.openjdk.org/jdk/pull/23988/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23988&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8351566
  Stats: 375 lines in 5 files changed: 230 ins; 135 del; 10 mod
  Patch: https://git.openjdk.org/jdk/pull/23988.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/23988/head:pull/23988

PR: https://git.openjdk.org/jdk/pull/23988