time, but never ONE with such a neck as that!  No, no!  You're a
serpent; and there's no use denying it.  I suppose you'll be
telling me next that you never tasted an egg!'

  `I HAVE tasted eggs, certainly,' said Alice, who was a very
truthful child; `but little girls eat eggs quite as much as
serpents do, you know.'

  `I don't believe it,' said the Pigeon; `but if they do, why

    }
  }

  private void checkAndUpdateState(State oldState, State newState) {
    checkState(
        compareAndUpdateState(oldState, newState),
        "Expected state to be %s, but it was %s",
        oldState,
        newState);
  }

  private boolean compareAndUpdateState(State oldState, State newState) {
    return state.compareAndSet(oldState, newState);
  }

time, but never ONE with such a neck as that!  No, no!  You're a
serpent; and there's no use denying it.  I suppose you'll be
telling me next that you never tasted an egg!'

  `I HAVE tasted eggs, certainly,' said Alice, who was a very
truthful child; `but little girls eat eggs quite as much as
serpents do, you know.'

  `I don't believe it,' said the Pigeon; `but if they do, why