private static final Supplier<Lock> FAIR_LOCK_SUPPLER = () -> new ReentrantLock(true);

  private static final Supplier<Semaphore> SEMAPHORE_SUPPLER = () -> new Semaphore(1, false);

  private static List<Striped<?>> weakImplementations() {
    return ImmutableList.<Striped<?>>builder()
        .add(new Striped.SmallLazyStriped<ReadWriteLock>(50, ReentrantReadWriteLock::new))

  private static final Supplier<Lock> FAIR_LOCK_SUPPLER = () -> new ReentrantLock(true);

  private static final Supplier<Semaphore> SEMAPHORE_SUPPLER = () -> new Semaphore(1, false);

  private static List<Striped<?>> weakImplementations() {
    return ImmutableList.<Striped<?>>builder()
        .add(new Striped.SmallLazyStriped<ReadWriteLock>(50, ReentrantReadWriteLock::new))