[jdk17u] RFR: 8269851: OperatingSystemMXBean getProcessCpuLoad reports incorrect process cpu usage in containers

Wed Aug 4 09:59:45 UTC 2021

Hi all,

This issue is present in JDK 17u as well and should get fixed (like the similar [JDK-8265836](https://bugs.openjdk.java.net/browse/JDK-8265836) which made it into JDK 17 GA.) Patch applies clean.

The commit being backported was authored by bobpengxie on 28 Jul 2021 and was reviewed by Severin Gehwolf.

Thanks!

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Commit messages:
 - Backport 25f00d787cf56f6cdca6949115d04e7d8e675554

Changes: https://git.openjdk.java.net/jdk17u/pull/9/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk17u&pr=9&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8269851
  Stats: 218 lines in 1 file changed: 137 ins; 78 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk17u/pull/9.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk17u pull/9/head:pull/9

PR: https://git.openjdk.java.net/jdk17u/pull/9