IPooledExecutor (testng 6.9.7 API)

```
public interface IPooledExecutor
```
Reduced interface to mimic ExecutorService.

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`awaitTermination(long timeout)`
`void`	`execute(java.lang.Runnable run)`
`boolean`	`isTerminated()`
`void`	`shutdown()`

void awaitTermination(long timeout)
               throws java.lang.InterruptedException

Interface IPooledExecutor