if (weigher == null) {
      checkState(maximumWeight == UNSET_INT, "maximumWeight requires weigher");
    } else {
      if (strictParsing) {
        checkState(maximumWeight != UNSET_INT, "weigher requires maximumWeight");
      } else {
        if (maximumWeight == UNSET_INT) {
          LoggerHolder.logger.log(
              Level.WARNING, "ignoring weigher specified without maximumWeight");
        }
      }
    }

  public void testEviction_setMaxSegmentWeight() {
    IdentityLoader<Object> loader = identityLoader();
    for (int i = 1; i < 1000; i++) {
      LoadingCache<Object, Object> cache =
          CacheBuilder.newBuilder().maximumWeight(i).weigher(constantWeigher(1)).build(loader);
      assertEquals(i, CacheTesting.getTotalSegmentSize(cache));
    }
  }

  public void testEviction_maxSizeOneSegment() {

    assertThrows(IllegalStateException.class, () -> builder.maximumWeight(16));
    assertThrows(IllegalStateException.class, () -> builder.maximumSize(16));
  }

  @GwtIncompatible // maximumWeight
  public void testMaximumWeight_withoutWeigher() {
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().maximumWeight(1);
    assertThrows(IllegalStateException.class, () -> builder.build(identityLoader()));

    assertThrows(IllegalStateException.class, () -> builder.maximumWeight(16));
    assertThrows(IllegalStateException.class, () -> builder.maximumSize(16));
  }

  @GwtIncompatible // maximumWeight
  public void testMaximumWeight_withoutWeigher() {
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().maximumWeight(1);
    assertThrows(IllegalStateException.class, () -> builder.build(identityLoader()));

                new TestStringCacheGenerator(
                    createCacheBuilder()
                        .maximumWeight(Integer.MAX_VALUE)
                        .weigher(new SerializableWeigher<String, String>())))
            .named("LocalCache with maximumWeight")
            .withFeatures(
                CollectionSize.ANY,
                MapFeature.GENERAL_PURPOSE,