[jdk21u-dev] RFR: Merge jdk21u:master

[Goetz Lindenmaier]

Merge build tag 21.0.3-ga from jdk21u to jdk21u-dev

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Commit messages:
 - Merge
 - 8329838: [21u] Remove designator DEFAULT_PROMOTED_VERSION_PRE=ea for release 21.0.3
 - 8319851: Improve exception logging
 - 8322122: Enhance generation of addresses
 - 8318340: Improve RSA key implementations
 - 8315708: Enhance HTTP/2 client usage

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=506&range=00.0
 - jdk21u:master: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=506&range=00.1

Changes: https://git.openjdk.org/jdk21u-dev/pull/506/files
  Stats: 172 lines in 19 files changed: 48 ins; 51 del; 73 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/506.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/506/head:pull/506

PR: https://git.openjdk.org/jdk21u-dev/pull/506