[lworld] RFR: Merge jdk

[David Simms]

Merge tag 'jdk-25+12' into lworld_merge_jdk_25_12
Added tag jdk-25+12 for changeset 78c18cfb

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Commit messages:
 - Merge tag 'jdk-25+12' into lworld_merge_jdk_25_12
 - 8349399: GHA: Add static-jdk build on linux-x64
 - 8350616: Skip ValidateHazardPtrsClosure in non-debug builds
 - 8350313: Include timings for leaving safepoint in safepoint logging
 - 8350649: Class unloading accesses/resurrects dead Java mirror after JDK-8346567
 - 8024695: new File("").exists() returns false whereas it is the current working directory
 - 8350770: [BACKOUT] Protection zone for easier detection of accidental zero-nKlass use
 - 8350443: GHA: Split static-libs-bundles into a separate job
 - 8287749: Re-enable javadoc -serialwarn option
 - 8345598: Upgrade NSS binaries for interop tests
 - ... and 69 more: https://git.openjdk.org/valhalla/compare/65b5649e...c76c7185

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - lworld: https://webrevs.openjdk.org/?repo=valhalla&pr=1384&range=00.0
 - jdk: https://webrevs.openjdk.org/?repo=valhalla&pr=1384&range=00.1

Changes: https://git.openjdk.org/valhalla/pull/1384/files
  Stats: 12988 lines in 322 files changed: 6551 ins; 5359 del; 1078 mod
  Patch: https://git.openjdk.org/valhalla/pull/1384.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1384/head:pull/1384

PR: https://git.openjdk.org/valhalla/pull/1384