8258422: Cleanup unnecessary null comparison before instanceof check in java.base
------------- Commit messages: - [PATCH] Cleanup unnecessary null comparison before instanceof check in java.base Changes: https://git.openjdk.java.net/jdk/pull/20/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=20&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8258422 Stats: 42 lines in 21 files changed: 0 ins; 0 del; 42 mod Patch: https://git.openjdk.java.net/jdk/pull/20.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/20/head:pull/20 PR: https://git.openjdk.java.net/jdk/pull/20
