RFR: 8255908: ExceptionInInitializerError due to UncheckedIOException while initializing cgroupv1 subsystem

[Poonam Bajaj]

Hi,

Please review this simple change that catches UncheckedIOException that can occur if /proc/self/cgroup or /proc/self/mountinfo files don't exist on the system, or if there is an interrupt while these are being read.

Testing: Tier1, Tier2 and Tier3.

Thanks,
Poonam

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Commit messages:
 - 8255908: ExceptionInInitializerError due to UncheckedIOException while initializing cgroupv1 subsystem

Changes: https://git.openjdk.java.net/jdk/pull/1303/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1303&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8255908
  Stats: 8 lines in 2 files changed: 8 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1303.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1303/head:pull/1303

PR: https://git.openjdk.java.net/jdk/pull/1303