RFR: 8316: Update to 10

[Marcus Hirt]

Updating the main branch to be the upcoming JMC 10.

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Commit messages:
 - Fixing some copyrights
 - 8316: Update trunk to 10

Changes: https://git.openjdk.org/jmc/pull/623/files
  Webrev: https://webrevs.openjdk.org/?repo=jmc&pr=623&range=00
  Issue: https://bugs.openjdk.org/browse/JMC-8316
  Stats: 225 lines in 139 files changed: 0 ins; 0 del; 225 mod
  Patch: https://git.openjdk.org/jmc/pull/623.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/623/head:pull/623

PR: https://git.openjdk.org/jmc/pull/623