Time test
diff 0.000025 milliSeconds
time per iteration 0.000025 microseconds
time per addTail/removeHead 0.000000 microseconds

Time test locked
diff 186.459567 milliSeconds
time per iteration 186.459567 microseconds
time per addTail/removeHead 0.093230 microseconds

Time ArrayList test
diff 652.028489 milliSeconds
time per iteration 652.028489 microseconds
time per addTail/removeHead 0.326014 microseconds

Time ArrayList test locked
diff 799.889631 milliSeconds
time per iteration 799.889631 microseconds
time per addTail/removeHead 0.399945 microseconds