[8u] RFR: 8255908: ExceptionInInitializerError due to UncheckedIOException while initializing cgroupv1 subsystem

[Severin Gehwolf]

Hi,

Please review this JDK 8u patch which I'd like to get into OpenJDK 8u
since Oracle backported it too. The patch is about better error
checking (catching UncheckedIOException in various places including
initialization code). The JDK 11 patch didn't apply cleanly due to
context difference in the import of SubSystem.java. That's all.
Trivially resolved.

Bug: https://bugs.openjdk.java.net/browse/JDK-8255908
webrev: https://cr.openjdk.java.net/~sgehwolf/webrevs/JDK-8255908/jdk8/02/webrev/

Thoughts?

Thanks,
Severin