Standard output
1520636643932 Test testAsync0: 1/0 - execute
1520636643932 Test testAsync0: 1/0 - sleeping
1520636643933 Test testAsync2: 1/0 - execute
1520636643933 Test testAsync2: 1/0 - sleeping
1520636643933 Test testAsync3: 1/0 - execute
1520636643933 Test testAsync3: 1/0 - sleeping
1520636643934 Test testAsync1: 1/0 - execute
1520636643935 Test testAsync1: 1/0 - sleeping
1520636643935 Test testAsync4: 1/0 - execute
1520636643936 Test testAsync4: 1/0 - sleeping
1520636647933 Test testAsync0: 1/0 - complete
1520636647933 Test testAsync2: 1/0 - complete
1520636647934 Test testAsync3: 1/0 - complete
1520636647935 Test testAsync1: 1/0 - complete
1520636647936 Test testAsync4: 1/0 - complete