[jdk11u-dev] RFR: 8316462: sun/jvmstat/monitor/MonitoredVm/MonitorVmStartTerminate.java ignores VM flags

[Antonio Vieiro]

Clean backport of [JDK-8314823](https://bugs.openjdk.org/browse/JDK-8314823) for parity with Oracle 11.0.24

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Commit messages:
 - Backport d6679031e0316f9ce0613b7db6bdf8ad46d31501

Changes: https://git.openjdk.org/jdk11u-dev/pull/2809/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2809&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8316462
  Stats: 4 lines in 1 file changed: 0 ins; 1 del; 3 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2809.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2809/head:pull/2809

PR: https://git.openjdk.org/jdk11u-dev/pull/2809