RFR: 8359174: tools/jlink/JLink20000Packages.java timed out [v8]

[Henry Jen]

> Create a jar directly from the memory instead of real file, this should reduce the I/O overhead which likely the reason for the time out.
> The issue is not reproducible locally, and fails intermittently, so we simply trying to reduce time needed.
> The jar file created is verified manually running jtreg with retain=all.

Henry Jen has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains nine commits:

 - Merge openjdk/master
 - Merge openjdk/master' into JDK-8359174
 - Clean up module dependencies
 - Clean up jtreg directives
 - Adapt review feedbacks
 - Update copyright year
 - Update copyright year
 - cleanup
 - 8359174: tools/jlink/JLink20000Packages.java timed out

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Changes: https://git.openjdk.org/jdk/pull/25981/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25981&range=07
  Stats: 124 lines in 2 files changed: 56 ins; 45 del; 23 mod
  Patch: https://git.openjdk.org/jdk/pull/25981.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25981/head:pull/25981

PR: https://git.openjdk.org/jdk/pull/25981