var err error
	switch operation {
	default:
		err = errSRInvalidRequest(errInvalidArgument)
	case madmin.MakeWithVersioningBktOp:
		createdAt, cerr := time.Parse(time.RFC3339Nano, strings.TrimSpace(r.Form.Get("createdAt")))
		if cerr != nil {
			createdAt = timeSentinel
		}

		opts := MakeBucketOptions{
			LockEnabled:       r.Form.Get("lockEnabled") == "true",

}

// SetCreatedAt preserves the CreatedAt time for bucket across sites in site replication. It defaults to
// creation time of bucket on this cluster in all other cases.
func (b *BucketMetadata) SetCreatedAt(createdAt time.Time) {
	if b.Created.IsZero() {
		b.Created = UTCNow()
	}
	if !createdAt.IsZero() {
		b.Created = createdAt.UTC()
	}
}

        try {
            final RESULT result = entityType.newInstance();
            result.setCreatedAt(toLocalDateTime(source.get("createdAt")));
            result.setDocId(DfTypeUtil.toString(source.get("docId")));
            result.setQueryId(DfTypeUtil.toString(source.get("queryId")));
            result.setUrl(DfTypeUtil.toString(source.get("url")));

				buckets, err = z.s3Peer.ListBuckets(ctx, opts)
				if err != nil {
					return nil, err
				}
				for i := range buckets {
					createdAt, err := globalBucketMetadataSys.CreatedAt(buckets[i].Name)
					if err == nil {
						buckets[i].Created = createdAt
					}
				}
				return buckets, nil
			},
		)

		return listBucketsCache.Get()
	}

        return writer -> {
            final UserInfoBhv bhv = ComponentUtil.getComponent(UserInfoBhv.class);
            bhv.selectCursor(cb -> {
                cb.query().matchAll();
                cb.query().addOrderBy_CreatedAt_Asc();
            }, entity -> {
                final StringBuilder buf = new StringBuilder();
                buf.append('{');
                appendJson("id", entity.getId(), buf).append(',');

	}
	if meta.sseConfig == nil {
		return nil, time.Time{}, BucketSSEConfigNotFound{Bucket: bucket}
	}
	return meta.sseConfig, meta.EncryptionConfigUpdatedAt, nil
}

// CreatedAt returns the time of creation of bucket
func (sys *BucketMetadataSys) CreatedAt(bucket string) (time.Time, error) {
	meta, _, err := sys.GetConfig(GlobalContext, bucket)
	if err != nil {
		return time.Time{}, err
	}
	return meta.Created.UTC(), nil
}

        try {
            final RESULT result = entityType.newInstance();
            result.setCreatedAt(toLocalDateTime(source.get("createdAt")));
            result.setUpdatedAt(toLocalDateTime(source.get("updatedAt")));
            return updateEntity(source, result);
        } catch (InstantiationException | IllegalAccessException e) {

		}

		if p.Version == 0 {
			// This means that policy was in the old version (without any
			// timestamp info). We fetch the mod time of the file and save
			// that as create and update date.
			p.CreateDate = objInfo.ModTime
			p.UpdateDate = objInfo.ModTime
		}

		m[policy] = p
		return nil
	}
}

type PolicyDoc struct {
	Version    int `json:",omitempty"`
	Policy     policy.Policy
	CreateDate time.Time `json:",omitempty"`
	UpdateDate time.Time `json:",omitempty"`
}

func newPolicyDoc(p policy.Policy) PolicyDoc {
	now := UTCNow().Round(time.Millisecond)
	return PolicyDoc{
		Version:    1,
		Policy:     p,
		CreateDate: now,
		UpdateDate: now,
	}
}

type MakeBucketOptions struct {
	LockEnabled       bool
	VersioningEnabled bool
	ForceCreate       bool      // Create buckets even if they are already created.
	CreatedAt         time.Time // only for site replication
	NoLock            bool      // does not lock the make bucket call if set to 'true'
}

// DeleteBucketOptions provides options for DeleteBucket calls.