*
   * <p>Results are undefined if {@code set1} and {@code set2} are sets based on different
   * equivalence relations, for example if {@code set1} is a {@link HashSet} and {@code set2} is a
   * {@link TreeSet} or the {@link Map#keySet} of an {@code IdentityHashMap}.
   */
  public static <E extends @Nullable Object> SetView<E> difference(Set<E> set1, Set<?> set2) {
    checkNotNull(set1, "set1");
    checkNotNull(set2, "set2");

	for {
		select {
		case <-ctx.Done():
			return
		case <-timer.C:
			var wg sync.WaitGroup
			for _, set := range s.sets {
				wg.Add(1)
				go func(set *erasureObjects) {
					defer wg.Done()
					if set == nil {
						return
					}
					set.cleanupDeletedObjects(ctx)
				}(set)
			}
			wg.Wait()

			// Reset for the next interval
			timer.Reset(globalAPIConfig.getDeleteCleanupInterval())

	tmpFormat.Erasure.This = ""
	if len(reference.Erasure.Sets) != len(format.Erasure.Sets) {
		return fmt.Errorf("Expected number of sets %d, got %d", len(reference.Erasure.Sets), len(format.Erasure.Sets))
	}

	// Make sure that the sets match.
	for i := range reference.Erasure.Sets {
		if len(reference.Erasure.Sets[i]) != len(format.Erasure.Sets[i]) {
			return fmt.Errorf("Each set should be of same size, expected %d got %d",

	}
	if len(formatV3.Erasure.Sets) != 1 {
		t.Fatalf("expected single set after migrating from v1 to v3, but found %d", len(formatV3.Erasure.Sets))
	}
	if !reflect.DeepEqual(formatV3.Erasure.Sets[0], m.Erasure.JBOD) {
		t.Fatalf("expected drive uuid: %v, got: %v", m.Erasure.JBOD, formatV3.Erasure.Sets[0])
	}

	m = &formatErasureV1{}
	m.Format = "unknown"

    }

    /**
     * Sets the title of the news article.
     * @param title the title to set
     */
    public void setTitle(final String title) {
        this.title = title;
    }

    /**
     * Gets the keywords.
     * @return the keywords
     */
    public String getKeywords() {
        return keywords;
    }

    /**
     * Sets the keywords.

            defaultRoleList.add(name);
        }));
    }

    /**
     * Builds a set of roles from the request.
     * @param searchRequestType The type of the search request.
     * @return A set of roles.
     */
    public Set<String> build(final SearchRequestType searchRequestType) {
        final Set<String> roleSet = new HashSet<>();

     * @param contentLoc the content URL to set
     */
    public void setContentLoc(final String contentLoc) {
        this.contentLoc = contentLoc;
    }

    /**
     * Gets the player location URL.
     * @return the player URL
     */
    public String getPlayerLoc() {
        return playerLoc;
    }

    /**
     * Sets the player location URL.

        }

    }

    /**
     * Sets the encoding for the output.
     * @param outputEncoding The output encoding to set.
     */
    public void setOutputEncoding(final String outputEncoding) {
        this.outputEncoding = outputEncoding;
    }

    /**
     * Sets the output file extension.
     * @param outputExtension The output file extension to set.
     */

     */
    int getCommand();

    /**
     * Sets the SMB command.
     *
     * @param command the command to set
     */
    void setCommand(int command);

    /**
     * Sets the user ID.
     *
     * @param uid the user ID to set
     */
    void setUid(int uid);

    /**
     * Sets whether extended security is enabled.
     *

    /**
     * Sets the suggest settings.
     * @param settings The suggest settings.
     * @return This builder instance.
     */
    public SuggesterBuilder settings(final SuggestSettings settings) {
        this.settings = settings;
        settingsBuilder = null;
        return this;
    }

    /**
     * Sets the suggest settings builder.