This PR proposes to add the `@Stable` annotation to `j.l.String.hash` and `j.l.String.hashIsZero`. This means the VM can trust these fields to never change which enables constant folding optimizations.
This PR is tested in tier1, tier2, and tier3 which all pass. ------------- Commit messages: - Update copyright year - Annotate fields with @Stable Changes: https://git.openjdk.org/jdk/pull/24625/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24625&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8354300 Stats: 3 lines in 1 file changed: 2 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/24625.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/24625/head:pull/24625 PR: https://git.openjdk.org/jdk/pull/24625
