[jdk21u-dev] RFR: 8366342: Key generator and key pair generator tests skipping, but showing as passed

[Goetz Lindenmaier]

I backport this for parity with 17.0.18-oracle.

Resolved three Copyrights, probably clean anyways,

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Commit messages:
 - backport 7690a45f77a2da47fa912fe7a2b2faa589f259f0

Changes: https://git.openjdk.org/jdk21u-dev/pull/2413/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2413&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8366342
  Stats: 35 lines in 6 files changed: 11 ins; 9 del; 15 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2413.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2413/head:pull/2413

PR: https://git.openjdk.org/jdk21u-dev/pull/2413