8143577: optimize ArrayList.removeIf
8169679: ArrayList.subList().iterator().forEachRemaining() off-by-one-error
8167202: ArrayDeque improvements
8164793: new ArrayDeque(2**N) allocates backing array of size 2**(N+1)
8169739: LinkedBlockingDeque spliterator needs to support node self-linking
8169738: CopyOnWriteArrayList subList needs more synchronization
Reviewed-by: martin, smarks, psandoz, forax