Integrated: Merge jdk

[Mikael Vidstedt]

Merge in jdk-16+28

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Commit messages:
 - Merge jdk
 - Merge jdk
 - Merge jdk
 - JEP 386 patch - minor cleanup
 - Fix linux close
 - Merge jdk
 - Merge jdk
 - Merge jdk
 - Merge jdk
 - Merge jdk
 - ... and 67 more: https://git.openjdk.java.net/portola/compare/37043b05...fd36fe86

The merge commit only contains trivial merges, so no merge-specific webrevs have been generated.

Changes: https://git.openjdk.java.net/portola/pull/19/files
  Stats: 40 lines in 2 files changed: 19 ins; 13 del; 8 mod
  Patch: https://git.openjdk.java.net/portola/pull/19.diff
  Fetch: git fetch https://git.openjdk.java.net/portola pull/19/head:pull/19

PR: https://git.openjdk.java.net/portola/pull/19