return emptySet();
  }

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

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

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

  protected Collection<Method> suppressForTreeMapWithComparator() {