Changed `HexDumpEncoder`, so `encodeBuffer` always uses ISO_8859_1. This also fixes the issue with conversion in `encode` method, as the input is always ISO_8859_1.
------------- Commit messages: - 8349664: Certificate.java toString HEX dump should always use ASCII or ISO_8859_1 Changes: https://git.openjdk.org/jdk/pull/23661/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23661&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8349664 Stats: 5 lines in 1 file changed: 2 ins; 0 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/23661.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/23661/head:pull/23661 PR: https://git.openjdk.org/jdk/pull/23661