assertHasArrayInterfaces(new TypeToken<NoInterface[]>() {});
  }

  public void testGetGenericInterfaces_withInterfaces() {
    Map<Class<?>, Type> interfaceMap = Maps.newHashMap();
    for (TypeToken<?> interfaceType :
        new TypeToken<Implementation<Integer, String>>() {}.getGenericInterfaces()) {
      interfaceMap.put(interfaceType.getRawType(), interfaceType.getType());
    }

   * href="http://goo.gl/iz2Wi">"diamond" syntax</a>.
   *
   * @return a new, empty {@code HashMap}
   */
  public static <K extends @Nullable Object, V extends @Nullable Object>
      HashMap<K, V> newHashMap() {
    return new HashMap<>();
  }

  /**
   * Creates a <i>mutable</i> {@code HashMap} instance with the same mappings as the specified map.
   *

   * href="http://goo.gl/iz2Wi">"diamond" syntax</a>.
   *
   * @return a new, empty {@code HashMap}
   */
  public static <K extends @Nullable Object, V extends @Nullable Object>
      HashMap<K, V> newHashMap() {
    return new HashMap<>();
  }

  /**
   * Creates a <i>mutable</i> {@code HashMap} instance with the same mappings as the specified map.
   *