RFR: 8342979: Start of release updates for JDK 25 [v5]

[Pavel Rappo]

> Prepare for JDK 25.

Pavel Rappo 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 seven additional commits since the last revision:

 - Update --release 24 symbol information for JDK 24 build 23
   
   The macOS/AArch64 build 23 was taken from https://jdk.java.net/24/
 - Merge branch 'master' into 8342979
 - Update --release 24 symbol information for JDK 24 build 22
   
   The macOS/AArch64 build 22 was taken from https://jdk.java.net/24/
 - Merge branch 'master' into 8342979
 - Update --release 24 symbol information for JDK 24 build 21
   
   The macOS/AArch64 build 21 was taken from https://jdk.java.net/24/
 - Add forgotten .jcheck/conf
 - Initial commit

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/21763/files
  - new: https://git.openjdk.org/jdk/pull/21763/files/9a0553bb..84dce9a3

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=21763&range=04
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=21763&range=03-04

  Stats: 132677 lines in 806 files changed: 104773 ins; 9792 del; 18112 mod
  Patch: https://git.openjdk.org/jdk/pull/21763.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/21763/head:pull/21763

PR: https://git.openjdk.org/jdk/pull/21763