[jdk8u-dev] RFR: 8252359: HotSpot Not Identifying it is Running in a Container

[Jonathan Dowland]

This is a clean backport of 8252359  to jdk8u-dev, as part of cgroups v2 support.

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Depends on: https://git.openjdk.org/jdk8u-dev/pull/155

Commit messages:
 - 8252359: HotSpot Not Identifying it is Running in a Container

Changes: https://git.openjdk.org/jdk8u-dev/pull/157/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk8u-dev&pr=157&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8252359
  Stats: 15 lines in 2 files changed: 0 ins; 0 del; 15 mod
  Patch: https://git.openjdk.org/jdk8u-dev/pull/157.diff
  Fetch: git fetch https://git.openjdk.org/jdk8u-dev pull/157/head:pull/157

PR: https://git.openjdk.org/jdk8u-dev/pull/157