* calling thread wait for that time.
   *
   * The simplest way to maintain a rate of QPS is to keep the timestamp of the last granted
   * request, and ensure that (1/QPS) seconds have elapsed since then. For example, for a rate of
   * QPS=5 (5 tokens per second), if we ensure that a request isn't granted earlier than 200ms after
   * the last one, then we achieve the intended rate. If a request comes and the last request was

// lockBlocking will try to acquire either a read or a write lock
//
// The function will loop using a built-in timing randomized back-off
// algorithm until either the lock is acquired successfully or more
// time has elapsed than the timeout value.
func (dm *DRWMutex) lockBlocking(ctx context.Context, lockLossCallback func(), id, source string, isReadLock bool, opts Options) (locked bool) {
	restClnts, _ := dm.clnt.GetLockers()

        new RuntimePermission("accessDeclaredMembers"),
        new PropertyPermission("*", "read"),
        new FilePermission("<<ALL FILES>>", "read"));
  }

  /** Sleeps until the given time has elapsed. Throws AssertionFailedError if interrupted. */
  void sleep(long millis) {
    try {
      delay(millis);
    } catch (InterruptedException ie) {

      throw new ExecutionError(e);
    } finally {
      if (!success) {
        globalStatsCounter.recordLoadException(stopwatch.elapsed(NANOSECONDS));
      }
    }

    if (result == null) {
      globalStatsCounter.recordLoadException(stopwatch.elapsed(NANOSECONDS));
      throw new InvalidCacheLoadException(loader + " returned null map from loadAll");
    }

    stopwatch.stop();

	}
}

func (ahs *allHealState) periodicHealSeqsClean(ctx context.Context) {
	// Launch clean-up routine to remove this heal sequence (after
	// it ends) from the global state after timeout has elapsed.
	periodicTimer := time.NewTimer(time.Minute * 5)
	defer periodicTimer.Stop()

	for {
		select {
		case <-periodicTimer.C:
			now := UTCNow()
			ahs.Lock()
			for path, h := range ahs.healSeqMap {

          Stopwatch stopwatch = entry.getValue();
          if (!stopwatch.isRunning() && !(service instanceof NoOpService)) {
            loadTimes.add(Maps.immutableEntry(service, stopwatch.elapsed(MILLISECONDS)));
          }
        }
      } finally {
        monitor.leave();
      }
      Collections.sort(
          loadTimes,
          Ordering.natural()
              .onResultOf(

          Stopwatch stopwatch = entry.getValue();
          if (!stopwatch.isRunning() && !(service instanceof NoOpService)) {
            loadTimes.add(Maps.immutableEntry(service, stopwatch.elapsed(MILLISECONDS)));
          }
        }
      } finally {
        monitor.leave();
      }
      Collections.sort(
          loadTimes,
          Ordering.natural()
              .onResultOf(

| `minio_scanner_directories_scanned`        | Total number of directories scanned since server start. <br><br>Type: counter     | `server` |
| `minio_scanner_last_activity_seconds`      | Time elapsed (in seconds) since last scan activity. <br><br>Type: gauge           | `server` |
| `minio_scanner_objects_scanned`            | Total number of unique objects scanned since server start. <br><br>Type: counter  | `server` |

        new RuntimePermission("accessDeclaredMembers"),
        new PropertyPermission("*", "read"),
        new FilePermission("<<ALL FILES>>", "read"));
  }

  /** Sleeps until the given time has elapsed. Throws AssertionFailedError if interrupted. */
  void sleep(long millis) {
    try {
      delay(millis);
    } catch (InterruptedException ie) {

	}
}

func getUsageLastScanActivityMD() MetricDescription {
	return MetricDescription{
		Namespace: minioMetricNamespace,
		Subsystem: usageSubsystem,
		Name:      lastActivityTime,
		Help:      "Time elapsed (in nano seconds) since last scan activity",
		Type:      gaugeMetric,
	}
}

func getBucketUsageQuotaTotalBytesMD() MetricDescription {
	return MetricDescription{
		Namespace: bucketMetricNamespace,