RFR: 8324259: Classes used by CDS at runtime should be archived [v2]

[Matias Saavedra Silva]

> The following classes are not included in the archive at dumptime but are used at runtime when loading the archive:
> 
> [0.248s][info][class,load] java.nio.file.FileSystems source: jrt:/java.base loader: boot_loader
> [0.248s][info][class,load] java.nio.file.FileSystems$DefaultFileSystemHolder source: jrt:/java.base loader: boot_loader
> [0.249s][info][class,load] java.nio.file.FileSystems$DefaultFileSystemHolder$1 source: jrt:/java.base loader: boot_loader
> [0.254s][info][class,load] java.net.URI$Parser source: jrt:/java.base loader: boot_loader 
> 
> This patch makes a dummy call at dumptime to archive these classes. Verified with tier 1-5 tests.

Matias Saavedra Silva has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:

 - Merge branch 'master' into archive_8324259
 - Ioi comment and test fix
 - Added regression test
 - 8324259: Classes used by CDS at runtime should be archived

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/21232/files
  - new: https://git.openjdk.org/jdk/pull/21232/files/d268d86a..e1e6ff38

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21232&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21232&range=00-01

  Stats: 9694 lines in 220 files changed: 6214 ins; 1915 del; 1565 mod
  Patch: https://git.openjdk.org/jdk/pull/21232.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21232/head:pull/21232

PR: https://git.openjdk.org/jdk/pull/21232