private static final String TEST_KEY = "test key";
  private static final String TEST_VALUE = "test value";

  // Non-loading versions:
  private final Map<Object, Object> map = new MapMaker().makeMap(); // Returns ConcurrentHashMap
  private final Cache<Object, Object> cache = CacheBuilder.newBuilder().recordStats().build();
  private final Cache<Object, Object> cacheNoStats = CacheBuilder.newBuilder().build();

    // GWT technically only supports concurrencyLevel == 1, but we silently
    // ignore other positive values.
    return this;
  }

  public <K, V> ConcurrentMap<K, V> makeMap() {
    return new ConcurrentHashMap<K, V>(initialCapacity);
  }

        Map<Element, Element> map = new MapMaker().concurrencyLevel(1).makeMap();
        for (Element element : keys) {
          map.put(element, element);
        }
        return map;
      }
    },
    MapMaker16 {
      @Override
      Map<Element, Element> create(Collection<Element> keys) {
        Map<Element, Element> map = new MapMaker().concurrencyLevel(16).makeMap();
        for (Element element : keys) {

      fail();
    } catch (IllegalStateException expected) {
    }
  }

  public void testReturnsPlainConcurrentHashMapWhenPossible() {
    Map<?, ?> map = new MapMaker().initialCapacity(5).makeMap();
    assertTrue(map instanceof ConcurrentHashMap);
  }

      fail();
    } catch (IllegalStateException expected) {
    }
  }

  public void testReturnsPlainConcurrentHashMapWhenPossible() {
    Map<?, ?> map = new MapMaker().initialCapacity(5).makeMap();
    assertTrue(map instanceof ConcurrentHashMap);
  }