1. use pragma directive to handle alignment. JBS Issue: [JDK-8318175](https://bugs.openjdk.org/browse/JDK-8318175)
------------- Commit messages: - Remove trailing whitespaces - Handling alignment for double in AIX. Changes: https://git.openjdk.org/jdk/pull/16579/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16579&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8318175 Stats: 14 lines in 2 files changed: 14 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/16579.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/16579/head:pull/16579 PR: https://git.openjdk.org/jdk/pull/16579
