Method addAll

classpath/java/util/AbstractQueue.java:28–39

(Collection <? extends T> collection)

  }

  @Override
  public boolean addAll(Collection <? extends T> collection) {
    if (collection == null) {
      throw new NullPointerException();
    }

    for (T element : collection) {
      add(element);
    }

    return true;
  }

  @Override
  public void clear() {