ZoneOffset.MINUTES_15_CACHE uses AtomicReferenceArray to replace ConcurrentMap to avoid object allocation caused by boxing from int to Integer during access.
------------- Commit messages: - Update src/java.base/share/classes/java/time/ZoneOffset.java - MINUTES_15_CACHE use AtomicReferenceArray instead of ConcurrentMap Changes: https://git.openjdk.org/jdk/pull/23337/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23337&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8348880 Stats: 9 lines in 1 file changed: 4 ins; 0 del; 5 mod Patch: https://git.openjdk.org/jdk/pull/23337.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/23337/head:pull/23337 PR: https://git.openjdk.org/jdk/pull/23337
