[jdk11u-dev] RFR: Merge jdk11u:master

[Goetz Lindenmaier]

Merge build tag 11.0.20+7 from jdk11u to jdk11u-dev

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Commit messages:
 - Merge
 - 8303465: KeyStore of type KeychainStore, provider Apple does not show all trusted certificates

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1970&range=00.0
 - jdk11u:master: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1970&range=00.1

Changes: https://git.openjdk.org/jdk11u-dev/pull/1970/files
  Stats: 242 lines in 3 files changed: 194 ins; 32 del; 16 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1970.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/1970/head:pull/1970

PR: https://git.openjdk.org/jdk11u-dev/pull/1970