We switched off unused-variable warnings for the file VMManagementImpl.c, this should be avoided. This came up in [JDK-8351542](https://bugs.openjdk.org/browse/JDK-8351542) ,
------------- Commit messages: - JDK-8351821 Changes: https://git.openjdk.org/jdk/pull/24052/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24052&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8351821 Stats: 8 lines in 2 files changed: 0 ins; 6 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/24052.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/24052/head:pull/24052 PR: https://git.openjdk.org/jdk/pull/24052
