[jdk17u-dev] RFR: 8301700: Increase the default TLS Diffie-Hellman group size from 1024-bit to 2048-bit [v2]

[Alexey Bakhtin]

> Backport is almost clean.
> CSR is approved for all major versions.
> sun/security/ssl/DHKeyExchange tests passed

Alexey Bakhtin has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge head into JDK-8301700
 - Backport 26b111d714c3ee62bd10a5e2ab44be01c13ff42e

-------------

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/1256/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/1256/files/e654b59a..72668f41

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1256&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1256&range=00-01

  Stats: 102797 lines in 2437 files changed: 71305 ins; 14809 del; 16683 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1256.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1256/head:pull/1256

PR: https://git.openjdk.org/jdk17u-dev/pull/1256