return emptySet();
  }

  protected Collection<Method> suppressForUnmodifiableMap() {
    return emptySet();
  }

  protected Collection<Method> suppressForUnmodifiableNavigableMap() {
    return emptySet();
  }

  protected Collection<Method> suppressForUnmodifiableSortedMap() {
    return emptySet();
  }

  protected Collection<Method> suppressForEnumMap() {