Avoid a byte array copy in encodeToString by using JavaLangAccess#uncheckedNewStringWithLatin1Bytes
------------- Commit messages: - 8378698: Optimize Base64.Encoder#encodeToString Changes: https://git.openjdk.org/jdk/pull/29920/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=29920&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8378698 Stats: 5 lines in 1 file changed: 3 ins; 1 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/29920.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/29920/head:pull/29920 PR: https://git.openjdk.org/jdk/pull/29920
