defer metaDataPoolPut(buf)

	if !isXL2V1Format(buf) {
		return errFileVersionNotFound
	}

	var xlMeta xlMetaV2
	if err = xlMeta.Load(buf); err != nil {
		return err
	}

	if err = xlMeta.UpdateObjectVersion(fi); err != nil {
		return err
	}

	wbuf, err := xlMeta.AppendTo(metaDataPoolGet())
	if err != nil {
		return err
	}
	defer metaDataPoolPut(wbuf)

}

// Load all versions of the stored data.
// Note that references to the incoming buffer will be kept.
func (x *xlMetaV2) Load(buf []byte) error {
	if meta, data, err := isIndexedMetaV2(buf); err != nil {
		return err
	} else if meta != nil {
		return x.loadIndexed(meta, data)
	}
	// Convert older format.
	return x.loadLegacy(buf)
}

func (x *xlMetaV2) loadIndexed(buf xlMetaBuf, data xlMetaInlineData) error {

		}
	}

	readQuorum := (len(rawFileInfos) + 1) / 2
	meta := &xlMetaV2{versions: mergeXLV2Versions(readQuorum, false, 1, metadataShallowVersions...)}
	lfi, err := meta.ToFileInfo(bucket, object, "", inclFreeVers, allParts)
	if err != nil {
		for i := range errs {
			if errs[i] == nil {
				errs[i] = err
			}
		}
		return metaFileInfos, errs
	}
	if !lfi.IsValid() {

			t.Fatalf("%s : %s", instanceType, err)
		}
		meta, err := loadBucketMetadata(context.Background(), obj, bucket)
		if err != nil {
			t.Fatalf("%s : %s", instanceType, err)
		}
		meta.VersioningConfigXML = []byte(`<VersioningConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/"><Status>Suspended</Status></VersioningConfiguration>`)
		if err := meta.Save(context.Background(), obj); err != nil {

			return false
		}

		for _, kv := range r.Flags.Filter.Metadata {
			for k, v := range oi.UserDefined {
				if !stringsHasPrefixFold(k, "x-amz-meta-") && !isStandardHeader(k) {
					continue
				}
				// We only need to match x-amz-meta or standardHeaders
				if kv.Match(BatchJobKV{Key: k, Value: v}) {
					return true
				}
			}
		}

		// None of the provided filters match
		return false

	// If it doesn't exist we get a new, so ignore errors
	meta := newBucketMetadata(bucket)
	meta.SetCreatedAt(opts.CreatedAt)
	if opts.LockEnabled {
		meta.VersioningConfigXML = enabledBucketVersioningConfig
		meta.ObjectLockConfigXML = enabledBucketObjectLockConfig
	}

	if opts.VersioningEnabled {
		meta.VersioningConfigXML = enabledBucketVersioningConfig
	}

	if err := meta.Save(context.Background(), z); err != nil {

    /* The iterator currently returning elements. */
    private Iterator<? extends T> iterator;

    /*
     * We track the "meta iterators," the iterators-of-iterators, below.  Usually, topMetaIterator
     * is the only one in use, but if we encounter nested concatenations, we start a deque of
     * meta-iterators rather than letting the nesting get arbitrarily deep.  This keeps each
     * operation O(1).
     */