// TestXLStorage empty list vols.
	if volInfos, err = xlStorage.ListVols(context.Background()); err != nil {
		t.Fatalf("expected: <nil>, got: %s", err)
	} else if len(volInfos) != 1 {
		t.Fatalf("expected: one entry, got: %s", volInfos)
	}

	// TestXLStorage non-empty list vols.
	if err = xlStorage.MakeVol(context.Background(), "success-vol"); err != nil {
		t.Fatalf("Unable to create volume, %s", err)
	}

       <version>1.8.0</version>
     </dependency>
     ```

 *  Fix: Gracefully recover from a failure to rebuild the cache journal.
 *  Fix: Don't corrupt cache entries when a cache entry is evicted while it is
    being updated.
 *  Fix: Make logging more consistent throughout OkHttp.
 *  Fix: Log plaintext bodies only. This uses simple heuristics to differentiate
    text from other data.

   *
   * <p><b>Java 8+ users:</b> many use cases for this method are better addressed by {@link
   * java.util.stream.Stream#filter}. This method is not being deprecated, but we gently encourage
   * you to migrate to streams.
   */
  // TODO(kevinb): how to omit that last sentence when building GWT javadoc?
  public static <E extends @Nullable Object> Set<E> filter(

	oi := objInfo.Clone()
	oi.metadataOnly = true // Perform only metadata updates.

	// allow retry in the case of failure to restore
	delete(oi.UserDefined, xhttp.AmzRestore)

	if _, err := er.CopyObject(ctx, bucket, object, bucket, object, oi, ObjectOptions{
		VersionID: oi.VersionID,
	}, ObjectOptions{

//
// Each set of client app params corresponds to a separate openid server, and
// the i-th server in this will be applied the i-th policy in `rolePolicies`. If
// a rolePolicies entry is an empty string, that server will be configured as
// policy-claim based openid server. NOTE that a valid configuration can have a
// policy claim based provider only if it is the only OpenID provider.