Same issue as JDK-8347811 on the hotspot side, but for Java Metrics classes (Linux specific).

Metrics implementation is based on cgroups which is created by class CgroupSubsystemFactory which incorrectly uses /proc/cgroups for finding enabled controllers. As a result the version detection scheme might be wrong since the version is detected based on /proc/cgroups which might provide incomplete data.

We should fix this.