RFR: JDK-8284977: MetricsTesterCgroupV2.getLongValueEntryFromFile fails when named value doesn't exist

[Martin Doerr]

On Tue, 14 Jun 2022 11:26:17 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

> When running test/jdk/jdk/internal/platform/cgroup/TestCgroupMetrics.java on ubuntu 21.10 or 22 , this test looks for a named value "nr_periods" in the file /sys/fs/cgroup/..../cpu.stat . However this metric is not always present, which leads to an AIOOB exception.

Marked as reviewed by mdoerr (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/9153