Non-instantiable utility classes should be declared `final` and have a private constructors.
See Effective Java, Third Edition, Joshua Bloch (for example, Item 19 or Item 22). ------------- Commit messages: - Make java.util.Arrays final Changes: https://git.openjdk.org/jdk/pull/13221/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13221&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8305157 Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/13221.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/13221/head:pull/13221 PR: https://git.openjdk.org/jdk/pull/13221
