if (current == State.OPEN) {
            long timeSinceLastFailure = System.currentTimeMillis() - lastFailureTime.get();
            if (timeSinceLastFailure > timeoutMillis) {
                if (state.compareAndSet(State.OPEN, State.HALF_OPEN)) {
                    stateChangeTime.set(System.currentTimeMillis());
                    halfOpenSuccesses.set(0);

      for (double x : VALUES) {
        assertBitEquals(prev, aa.get(i));
        assertFalse(aa.compareAndSet(i, unused, x));
        assertBitEquals(prev, aa.get(i));
        assertTrue(aa.compareAndSet(i, prev, x));
        assertBitEquals(x, aa.get(i));
        prev = x;
      }
    }
  }

  /** compareAndSet in one thread enables another waiting for value to succeed */

   * @param update the new value
   * @return true if successful. False return indicates that the actual value was not equal to the
   *     expected value.
   */
  public final boolean compareAndSet(int i, double expect, double update) {
    return longs.compareAndSet(i, doubleToRawLongBits(expect), doubleToRawLongBits(update));
  }

  /**
   * Atomically sets the element at position {@code i} to the given updated value if the current

     * interrupt, yet it will still run, since interruptTask will leave the runner value null,
     * allowing the CAS below to succeed.
     */
    Thread currentThread = Thread.currentThread();
    if (!compareAndSet(null, currentThread)) {
      return; // someone else has run or is running.
    }

    boolean run = !isDone();
    T result = null;
    Throwable error = null;
    try {
      if (run) {

        AbstractFutureState<?> future, @Nullable Waiter expect, @Nullable Waiter update) {
      return waitersUpdater.compareAndSet(future, expect, update);
    }

    @Override
    boolean casListeners(
        AbstractFutureState<?> future, @Nullable Listener expect, Listener update) {
      return listenersUpdater.compareAndSet(future, expect, update);
    }

    @Override

        AbstractFutureState<?> future, @Nullable Waiter expect, @Nullable Waiter update) {
      return waitersUpdater.compareAndSet(future, expect, update);
    }

    @Override
    boolean casListeners(
        AbstractFutureState<?> future, @Nullable Listener expect, Listener update) {
      return listenersUpdater.compareAndSet(future, expect, update);
    }

    @Override

        long windowStart = currentWindowStart.get();

        // Check if we need to reset the window (1 minute window)
        if (now - windowStart > 60000) {
            currentWindowStart.compareAndSet(windowStart, now);
            globalAttemptsInCurrentWindow.set(0);
        }

        int attempts = globalAttemptsInCurrentWindow.incrementAndGet();
        return attempts <= maxGlobalAttemptsPerMinute;
    }

      long newValue;
      do {
        oldValue = data.get(longIndex);
        newValue = oldValue | mask;
        if (oldValue == newValue) {
          return false;
        }
      } while (!data.compareAndSet(longIndex, oldValue, newValue));

      // We turned the bit on, so increment bitCount.
      bitCount.increment();
      return true;
    }

    boolean get(long bitIndex) {

        while (responseTimeMs < currentMin) {
            if (minResponseTime.compareAndSet(currentMin, responseTimeMs)) {
                break;
            }
            currentMin = minResponseTime.get();
        }

        long currentMax = maxResponseTime.get();
        while (responseTimeMs > currentMax) {
            if (maxResponseTime.compareAndSet(currentMax, responseTimeMs)) {
                break;
            }

            }
        }

        if (usage == 1) {
            synchronized (this) {
                if (this.sessionAcquired.compareAndSet(false, true)) {
                    log.debug("Reacquire session");
                    this.session.acquire();
                }
            }
        }
        return this;
    }

    /**