Interface NanoClock (1.42.3)

Nano clock which can be used to measure elapsed time in nanoseconds.

The default system implementation can be accessed at #SYSTEM. Alternative implementations may be used for testing.

Provides the default System implementation of a nano clock by using System#nanoTime().

Returns the current value of the most precise available system timer, in nanoseconds for use to measure elapsed time, to match the behavior of System#nanoTime().