case RUNNING:
        case STARTING:
        case STOPPING:
          snapshot = new StateSnapshot(FAILED, false, cause);
          enqueueFailedEvent(previous, cause);
          break;
        case FAILED:
          // Do nothing
          break;
      }
    } finally {
      monitor.leave();
      dispatchListenerEvents();
    }
  }

        case RUNNING:
        case STARTING:
        case STOPPING:
          snapshot = new StateSnapshot(FAILED, false, cause);
          enqueueFailedEvent(previous, cause);
          break;
        case FAILED:
          // Do nothing
          break;
      }
    } finally {
      monitor.leave();
      dispatchListenerEvents();
    }
  }

          }
        }
        // Queue our listeners

        // Did a service fail?
        if (to == FAILED) {
          enqueueFailedEvent(service);
        }

        if (states.count(RUNNING) == numberOfServices) {
          // This means that the manager is currently healthy. N.B. If other threads call isHealthy