This PR updates the various security classes using Cleaner with the try/finally pattern. Also noticed that SunJCE's PBEKey impl class overrides the destroy() method but not the isDestroyed() method, fixed this inconsistency as well.
Thanks in advance for the review! ------------- Commit messages: - minor comments update - 8312306: Add more Reference.reachabilityFence() calls to the security classes using Cleaner Changes: https://git.openjdk.org/jdk/pull/15390/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15390&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8312306 Stats: 238 lines in 6 files changed: 149 ins; 4 del; 85 mod Patch: https://git.openjdk.org/jdk/pull/15390.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/15390/head:pull/15390 PR: https://git.openjdk.org/jdk/pull/15390
