https://docs.oracle.com/javase/jp/11/docs/api/jdk.management/com/sun/management/OperatingSystemMXBean.html
OperatingSystemMXBean (Java SE 11 & JDK 11 )
java sejdk
https://eclipse-openj9.github.io/openj9-docs/dcomibmlangmanagementosmxbeaniscputime100ns/
-Dcom.ibm.lang.management.OperatingSystemMXBean.isCpuTime100ns -
Eclipse OpenJ9 documentation
dcomibmlangmanagement