[jdk11u-dev] RFR: 8301700: Increase the default TLS Diffie-Hellman group size from 1024-bit to 2048-bit [v2]

[Alexey Bakhtin]

> Backport is almost clean.
> The test is manually updated because of no JDK-8211018 in JDK11
> 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 three additional commits since the last revision:

 - Merge head into JDK-8301700
 - Backport 10f16746254ce62031f40ffb0f49f22e81cbe631
 - Backport 26b111d714c3ee62bd10a5e2ab44be01c13ff42e

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

Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/1835/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/1835/files/9b4b26fe..dde61c71

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1835&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1835&range=00-01

  Stats: 69191 lines in 996 files changed: 43499 ins; 15724 del; 9968 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1835.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/1835/head:pull/1835

PR: https://git.openjdk.org/jdk11u-dev/pull/1835