RFR: 7565: Update master to 8.3

[Marcus Hirt]

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Commit messages:
 - 7565: Update master to 8.3

Changes: https://git.openjdk.java.net/jmc/pull/383/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jmc&pr=383&range=00
  Issue: https://bugs.openjdk.java.net/browse/JMC-7565
  Stats: 221 lines in 146 files changed: 0 ins; 0 del; 221 mod
  Patch: https://git.openjdk.java.net/jmc/pull/383.diff
  Fetch: git fetch https://git.openjdk.java.net/jmc pull/383/head:pull/383

PR: https://git.openjdk.java.net/jmc/pull/383