BenchmarkWorker.new FutureCallback() {...}

Element	Missed Instructions	Cov.	Missed Branches	Cov.	Missed	Cxty	Missed	Lines	Missed	Methods
Total	19 of 19	0%	0 of 0	n/a	4	4	7	7	4	4
{...}		0%		n/a	1	1	1	1	1	1
cancelled()		0%		n/a	1	1	2	2	1	1
completed(Void)		0%		n/a	1	1	2	2	1	1
failed(Exception)		0%		n/a	1	1	2	2	1	1