return j.ObjectV2.Signature()
	case DeleteType:
		return j.DeleteMarker.Signature()
	case LegacyType:
		return j.ObjectV1.Signature()
	}
	return signatureErr
}

// getModTime will return the ModTime of the underlying version.
func (j xlMetaV2Version) getModTime() time.Time {
	switch j.Type {
	case ObjectType:
		return time.Unix(0, j.ObjectV2.ModTime)
	case DeleteType: