[jdk11u-dev] RFR: 8254001: [Metrics] Enhance parsing of cgroup interface files for version detection

[Severin Gehwolf]

On Thu, 7 Apr 2022 15:34:54 GMT, Andrew Azores <duke at openjdk.java.net> wrote:

> Backport commit [a50725db2ab621e1a17cb5505f78e4bc73972a27](https://github.com/openjdk/jdk/commit/a50725db) for [JDK-8254001](https://bugs.openjdk.java.net/browse/JDK-8254001), enhancement to cgroups interface parsing and version detection.
> 
> The patch applied mostly cleanly with only two minor conflicts in `CgroupV1Subsystem.java`. These conflicts were simply hunks that failed to apply because the surrounding context did not match due to later changes in the internal implementation that are not present in JDK11. Since the patch being backported wholly replaces or removes these implementations anyway, my resolution was to simply remove the old implementation and accept the new implementation from the backport patch.

@andrewazores OCA is now approved. Please request for approval in the bug. See step 6 in: https://wiki.openjdk.java.net/display/JDKUpdates/How+to+contribute+a+fix

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PR: https://git.openjdk.java.net/jdk11u-dev/pull/1020