This PR proposes making a field in `RandomAccessFile` final. Also, it modernises a switch statement.
------------- Commit messages: - Reclare field final and modernize switch Changes: https://git.openjdk.org/jdk/pull/11632/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11632&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8298567 Stats: 15 lines in 1 file changed: 0 ins; 5 del; 10 mod Patch: https://git.openjdk.org/jdk/pull/11632.diff Fetch: git fetch https://git.openjdk.org/jdk pull/11632/head:pull/11632 PR: https://git.openjdk.org/jdk/pull/11632
