CollectionSize.ANY)
        .suppressing(suppressForConcurrentHashMap())
        .createTestSuite();
  }

  public Test testsForConcurrentSkipListMapNatural() {
    return ConcurrentNavigableMapTestSuiteBuilder.using(
            new TestStringSortedMapGenerator() {
              @Override
              protected SortedMap<String, String> create(Entry<String, String>[] entries) {