[jdk26] RFR: 8373122: JFR build failure with CDS disabled due to -Werror=unused-function after JDK-8365400

Wed Dec 24 03:53:11 UTC 2025

Hi all,

This pull request contains a backport of commit [e1d81c09](https://github.com/openjdk/jdk/commit/e1d81c0946364a266a006481a8fbbac24c7e6c6a) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Hao Sun on 23 Dec 2025 and was reviewed by Markus Grönlund, Jie Fu and Francesco Andreuzzi.

Thanks!

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Commit messages:
 - Backport e1d81c0946364a266a006481a8fbbac24c7e6c6a

Changes: https://git.openjdk.org/jdk/pull/28976/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28976&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8373122
  Stats: 28 lines in 1 file changed: 14 ins; 14 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/28976.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28976/head:pull/28976

PR: https://git.openjdk.org/jdk/pull/28976