boolean isRunning();

  /** Returns the lifecycle state of the service. */
  State state();

  /**
   * If the service is {@linkplain State#STARTING starting} or {@linkplain State#RUNNING running},
   * this initiates service shutdown and returns immediately. If the service is {@linkplain
   * State#NEW new}, it is {@linkplain State#TERMINATED terminated} without having been started nor

    @Override
    public void running() {
      ServiceManagerState state = this.state.get();
      if (state != null) {
        state.transitionService(service, STARTING, RUNNING);
      }
    }

    @Override
    public void stopping(State from) {
      ServiceManagerState state = this.state.get();
      if (state != null) {
        state.transitionService(service, from, STOPPING);
      }
    }

    assertThat(limiter.getRate()).isEqualTo(5.0);
    limiter.setRate(10.0);
    assertThat(limiter.getRate()).isEqualTo(10.0);

    assertThrows(IllegalArgumentException.class, () -> limiter.setRate(0.0));
    assertThrows(IllegalArgumentException.class, () -> limiter.setRate(-10.0));
    assertThrows(IllegalArgumentException.class, () -> limiter.setRate(Double.NaN));
  }

  public void testAcquireParameterValidation() {

    assertThat(limiter.getRate()).isEqualTo(5.0);
    limiter.setRate(10.0);
    assertThat(limiter.getRate()).isEqualTo(10.0);

    assertThrows(IllegalArgumentException.class, () -> limiter.setRate(0.0));
    assertThrows(IllegalArgumentException.class, () -> limiter.setRate(-10.0));
    assertThrows(IllegalArgumentException.class, () -> limiter.setRate(Double.NaN));
  }

  public void testAcquireParameterValidation() {

}

// newHealState - initialize global heal state management
func newHealState(ctx context.Context, cleanup bool) *allHealState {
	hstate := &allHealState{
		healSeqMap:     make(map[string]*healSequence),
		healLocalDisks: make(map[Endpoint]bool),
		healStatus:     make(map[string]healingTracker),
	}
	if cleanup {
		go hstate.periodicHealSeqsClean(ctx)
	}
	return hstate
}

  static void awaitWaiting(Thread t) {
    while (true) {
      Thread.State state = t.getState();
      switch (state) {
        case RUNNABLE:
        case BLOCKED:
          Thread.yield();
          break;
        case WAITING:
          return;
        default:
          throw new AssertionError("unexpected state: " + state);
      }
    }
  }

        totalFailures.incrementAndGet();
        lastFailureTime.set(System.currentTimeMillis());

        State current = state.get();

        if (current == State.HALF_OPEN) {
            // Single failure in half-open state reopens the circuit
            if (state.compareAndSet(State.HALF_OPEN, State.OPEN)) {
                stateChangeTime.set(System.currentTimeMillis());
                consecutiveFailures.set(1);

   * versions.
   */
  public static Stats fromByteArray(byte[] byteArray) {
    checkNotNull(byteArray);
    checkArgument(
        byteArray.length == BYTES,
        "Expected Stats.BYTES = %s remaining , got %s",
        BYTES,
        byteArray.length);
    return readFrom(ByteBuffer.wrap(byteArray).order(ByteOrder.LITTLE_ENDIAN));
  }

  /**

			}
		default:
			bts, err = msgp.Skip(bts)
			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}
	}
	o = bts
	return
}

// Msgsize returns an upper bound estimate of the number of bytes occupied by the serialized message
func (z RStat) Msgsize() (s int) {
	s = 1 + 6 + msgp.Int64Size + 6 + msgp.Int64Size
	return
}

// DecodeMsg implements msgp.Decodable

        State currentState = state.get();

        if (currentState == State.OPEN && shouldAttemptReset()) {
            transitionTo(State.HALF_OPEN);
            currentState = State.HALF_OPEN;
        }

        if (currentState == State.OPEN) {
            throw new CircuitOpenException("Circuit breaker '" + name + "' is open");
        }