}

  public void testBuilderAddAll() {
    List<String> a = asList("a", "b", "c");
    List<String> b = asList("c", "d", "e");
    ImmutableSet<String> set = this.<String>builder().addAll(a).addAll(b).build();
    assertThat(set).containsExactly("a", "b", "c", "d", "e").inOrder();
  }

  static final int LAST_COLOR_ADDED = 0x00BFFF;

  public void testComplexBuilder() {

            for (File jsonFile : jsonFiles) {
                getLogger().info("Verifying documentation for file: {}", jsonFile.getName());
                allErrors.addAll(findMissingAdocFiles(jsonFile, directoryPath));
                allErrors.addAll(findMissingAnchors(jsonFile, allExistingAnchors));
            }

            if (!allErrors.isEmpty()) {

                if (existing != null) {
                    if (version == null) {
                        version = existing.getVersion();
                    }
                    execs.addAll(existing.getExecutions());
                    deps.addAll(existing.getDependencies());
                }

                PluginExecution execution = PluginExecution.newBuilder()
                        .id(getExecutionId(existing, goal))

 * the methods of the delegate. For example, overriding {@link #add} alone <i>will not</i> change
 * the behavior of {@link #addAll}, which can lead to unexpected behavior. In this case, you should
 * override {@code addAll} as well, either providing your own implementation, or delegating to the
 * provided {@code standardAddAll} method.
 *

        add.forEach((name, node) -> org.merge(name, node, this::merge));
        return org;
    }

    private BuildStep merge(BuildStep node1, BuildStep node2) {
        node1.predecessors.addAll(node2.predecessors);
        node1.successors.addAll(node2.successors);
        node2.mojos.forEach((k, v) -> node1.mojos.merge(k, v, this::mergeMojos));
        return node1;
    }

    }

    @Override
    public boolean add(T element) {
      return standardAdd(element);
    }

    @Override
    public boolean addAll(Collection<? extends T> collection) {
      return standardAddAll(collection);
    }

    @Override
    public boolean addAll(int index, Collection<? extends T> elements) {
      return standardAddAll(index, elements);
    }

    @Override
    public void clear() {

    }

    @Override
    public boolean add(T element) {
      return standardAdd(element);
    }

    @Override
    public boolean addAll(Collection<? extends T> collection) {
      return standardAddAll(collection);
    }

    @Override
    public boolean addAll(int index, Collection<? extends T> elements) {
      return standardAddAll(index, elements);
    }

    @Override
    public void clear() {

            new TestStringListGenerator() {
              @Override
              public List<String> create(String[] elements) {
                List<String> innerList = new ArrayList<>();
                Collections.addAll(innerList, elements);
                return unmodifiableList(innerList);
              }
            })
        .named("unmodifiableList/ArrayList")
        .withFeatures(

            new TestStringListGenerator() {
              @Override
              public List<String> create(String[] elements) {
                List<String> innerList = new ArrayList<>();
                Collections.addAll(innerList, elements);
                return unmodifiableList(innerList);
              }
            })
        .named("unmodifiableList/ArrayList")
        .withFeatures(

    if (elements instanceof Collection) {
      return new ArrayDeque<>((Collection<? extends E>) elements);
    }
    ArrayDeque<E> deque = new ArrayDeque<>();
    Iterables.addAll(deque, elements);
    return deque;
  }

  // ConcurrentLinkedQueue

  /** Creates an empty {@code ConcurrentLinkedQueue}. */
  @J2ktIncompatible
  @GwtIncompatible // ConcurrentLinkedQueue