Clock (Payara Project 6.2022.1.Alpha3 API)

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface Clock
```
An abstraction for how time passes. It is passed to Timer to track timing.

Field Summary

Fields
Modifier and Type	Field	Description
`static Clock`	`DEFAULT`	A clock implementation which returns the current time in epoch nanoseconds.
`static Clock`	`THREAD_CPU_TIME`	A clock implementation which returns the current thread's CPU time.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`static Clock`	`defaultClock()`	The default clock to use.
`long`	`getTick()`	Returns the current time tick.
`default long`	`getTime()`	Returns the current time in milliseconds.

- Field Detail
  - DEFAULT
```
static final Clock DEFAULT
```
    A clock implementation which returns the current time in epoch nanoseconds.
  - THREAD_CPU_TIME
```
static final Clock THREAD_CPU_TIME
```
    A clock implementation which returns the current thread's CPU time.
- Method Detail
  - getTick
```
long getTick()
```
    Returns the current time tick.
    
    Returns:
    
    time tick in nanoseconds
  - getTime
```
default long getTime()
```
    Returns the current time in milliseconds.
    
    Returns:
    
    time in milliseconds
  - defaultClock
```
static Clock defaultClock()
```
    The default clock to use.
    
    Returns:
    
    the DEFAULT Clock instance