RFR [XS]: 8244500: jtreg test error in test/hotspot/jtreg/containers/docker/TestMemoryAwareness.java

[Baesken, Matthias]

Hello,

I noticed issues on one of our Linux test machines with jtreg test test/hotspot/jtreg/containers/docker/TestMemoryAwareness.java
After 8231111: Cgroups v2: Rework Metrics in java.base so as to recognize unified hierarchy .
we see errors on one of our Linux test machines in jtreg test test/hotspot/jtreg/containers/docker/TestMemoryAwareness.java .

> Error:
> test result: Failed. Execution failed: `main' threw exception: java.lang.RuntimeException: 'OperatingSystemMXBean.getTotalSwapSpaceSize: 0' missing from stdout/stderr
> Test output reports:
> OperatingSystemMXBean.getTotalSwapSpaceSize: 16106061824
> OperatingSystemMXBean.getFreeSwapSpaceSize: 15958736896
> We also see this output:
> WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
>

A  check for the warning message "Your kernel does not support swap limit capabilities" could be added to the test.

Bug/webrev :
https://bugs.openjdk.java.net/browse/JDK-8244500

http://cr.openjdk.java.net/~mbaesken/webrevs/8244500.0/

Thanks, Matthias