Returns a new worker thread operating in the given pool.
Returning null or throwing an exception may result in tasks
never being executed. If this method throws an exception,
it is relayed to the caller of the method (for example
execute) causing attempted thread creation. If this
method returns null or throws an exception, it is not
retried until the next attempted creation (for example
another call to execute).
pool | the pool this thread works in |
null if the request
to create a thread is rejected
NullPointerException | if the pool is null |
Diagram: ExecutorService