This PR proposes to add missing copyright headers to some FFM benchmarks. -------------
Commit messages: - Add copyright headers Changes: https://git.openjdk.org/jdk/pull/23433/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23433&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8349343 Stats: 184 lines in 8 files changed: 184 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/23433.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/23433/head:pull/23433 PR: https://git.openjdk.org/jdk/pull/23433
