}

    @Override
    @CheckForNull
    public K floor(@ParametricNullness K e) {
      return map().floorKey(e);
    }

    @Override
    @CheckForNull
    public K ceiling(@ParametricNullness K e) {
      return map().ceilingKey(e);
    }

    @Override
    @CheckForNull
    public K higher(@ParametricNullness K e) {
      return map().higherKey(e);
    }

    this.future = task;
  }

  /**
   * Returns a future that finishes when this step does. Calling {@code get()} on the returned
   * future returns {@code null} if the step is successful or throws the same exception that would
   * be thrown by calling {@code finishToFuture().get()} if this were the last step. Calling {@code
   * cancel()} on the returned future has no effect on the {@code ClosingFuture} pipeline.
   *

type Fault int

const (
	None Fault = iota
	MissingContentLength
	TooBigObject
	TooBigDecodedLength
	BadSignature
	BadMD5
	MissingUploadID
)

// Wrapper for calling HeadObject API handler tests for both Erasure multiple disks and FS single drive setup.
func TestAPIHeadObjectHandler(t *testing.T) {
	ExecObjectLayerAPITest(t, testAPIHeadObjectHandler, []string{"HeadObject"})
}

  - [Changes by Kind](#changes-by-kind)
    - [Deprecation](#deprecation)
    - [API Change](#api-change)
    - [Feature](#feature)
    - [Documentation](#documentation)
    - [Failing Test](#failing-test)
    - [Bug or Regression](#bug-or-regression)
    - [Other (Cleanup or Flake)](#other-cleanup-or-flake)
    - [Uncategorized](#uncategorized)
  - [Dependencies](#dependencies)
    - [Added](#added)

          </association>
        </field>
      </fields>
      <comment>We could probably have a specific element for a dev mailing list for things like CI,
        and maybe even a specific element for the user and scm mailing lists. Then leave the more
        lose structure for any other type of mailing list.</comment>
      <codeSegments>
        <codeSegment>
          <version>4.0.0+</version>
          <code>

	if objectAPI == nil {
		return
	}

	storageInfo := objectAPI.StorageInfo(ctx, true)

	// Collect any disk healing.
	healing, _ := getAggregatedBackgroundHealState(ctx, nil)
	healDisks := make(map[string]struct{}, len(healing.HealDisks))
	for _, disk := range healing.HealDisks {
		healDisks[disk] = struct{}{}
	}

	// find all disks which belong to each respective endpoints

	ReplicateIncomingDelete = "replicate:incoming:delete"

	// ReplicateHeal - audit trail for healing of failed/pending replications
	ReplicateHeal = "replicate:heal"
	// ReplicateHealDelete - audit trail of healing of failed/pending delete replications.
	ReplicateHealDelete = "replicate:heal:delete"
)

var (
	globalReplicationPool  *ReplicationPool

		Help:      "Objects for which healing failed in current self healing run",
		Type:      gaugeMetric,
	}
}

func getHealLastActivityTimeMD() MetricDescription {
	return MetricDescription{
		Namespace: healMetricNamespace,
		Subsystem: timeSubsystem,
		Name:      lastActivityTime,
		Help:      "Time elapsed (in nano seconds) since last self healing activity.",
		Type:      gaugeMetric,
	}

	if err != nil {
		return wrapSRErr(err)
	}
	return nil
}

// getAdminClient - NOTE: ensure to take at least a read lock on SiteReplicationSys
// before calling this.
func (c *SiteReplicationSys) getAdminClient(ctx context.Context, deploymentID string) (*madmin.AdminClient, error) {
	creds, err := c.getPeerCreds()
	if err != nil {
		return nil, err
	}

		err = msgp.WrapError(err, "FSType")
		return
	}
	z.RootDisk, err = dc.ReadBool()
	if err != nil {
		err = msgp.WrapError(err, "RootDisk")
		return
	}
	z.Healing, err = dc.ReadBool()
	if err != nil {
		err = msgp.WrapError(err, "Healing")
		return
	}
	z.Scanning, err = dc.ReadBool()
	if err != nil {
		err = msgp.WrapError(err, "Scanning")
		return
	}
	z.Endpoint, err = dc.ReadString()