Collection<? extends V> valueCollection = (Collection<? extends V>) values;
      return !valueCollection.isEmpty() && get(key).addAll(valueCollection);
    } else {
      Iterator<? extends V> valueItr = values.iterator();
      return valueItr.hasNext() && Iterators.addAll(get(key), valueItr);
    }
  }

  @CanIgnoreReturnValue
  @Override
  public boolean putAll(Multimap<? extends K, ? extends V> multimap) {

    builder.interceptors().addAll(listOf(null) as List<Interceptor>)
    assertFailsWith<IllegalStateException> {
      builder.build()
    }.also { expected ->
      assertThat(expected.message).isEqualTo("Null interceptor: [null]")
    }
  }

  @Test fun nullNetworkInterceptorInList() {
    val builder = OkHttpClient.Builder()
    builder.networkInterceptors().addAll(listOf(null) as List<Interceptor>)

        getAddAllUnsupportedSomePresentMethod());
  }

  @Override
  protected Collection<Method> suppressForConcurrentSkipListMap() {
    List<Method> methods = new ArrayList<>();
    methods.addAll(super.suppressForConcurrentSkipListMap());
    methods.add(getContainsEntryWithIncomparableKeyMethod());
    methods.add(getContainsEntryWithIncomparableValueMethod());
    return methods;
  }

     *
     * @param c the collection to copy from
     */
    public CaseInsensitiveSet(final Collection<String> c) {
        map = new CaseInsensitiveMap<>(Math.max((int) (c.size() / .75f) + 1, 16));
        addAll(c);
    }

    /**
     * Creates a {@link CaseInsensitiveSet}.
     *
     * @param initialCapacity the initial capacity
     */
    public CaseInsensitiveSet(final int initialCapacity) {

    checkConflict("absent", absentFeatures, "present", morePresentFeatures, source);
    checkConflict("present", presentFeatures, "absent", moreAbsentFeatures, source);
    presentFeatures.addAll(morePresentFeatures);
    absentFeatures.addAll(moreAbsentFeatures);
    return requirements;
  }

  // Used by incorporateRequirements() only
  private static void checkConflict(
      String earlierRequirement,

                    CompactLinkedHashSet<String> set = CompactLinkedHashSet.create();
                    set.convertToHashFloodingResistantImplementation();
                    Collections.addAll(set, elements);
                    return set;
                  }
                })
            .named("CompactLinkedHashSet with flooding protection")
            .withFeatures(allFeatures)

    Collection<E> copy = new ArrayList<>();
    copy.addAll(collection);

    try {
      collection.add(sampleElement);
      fail("add succeeded on unmodifiable collection");
    } catch (UnsupportedOperationException expected) {
    }

    assertCollectionsAreEquivalent(copy, collection);

    try {
      collection.addAll(siblingCollection);
      fail("addAll succeeded on unmodifiable collection");

            duplicateHostList = new ArrayList<>();
        }
        try {
            final DuplicateHostService duplicateHostService = ComponentUtil.getComponent(DuplicateHostService.class);
            duplicateHostList.addAll(duplicateHostService.getDuplicateHostList());
        } catch (final AutoBindingFailureException e) {
            logger.warn("DuplicateHostService is not found.", e);
        }
    }

    /**

    List<E> list = new ArrayList<>();
    addAll(list, elements);
    return list;
  }

  public static <E extends @Nullable Object> List<E> copyToList(E[] elements) {
    return copyToList(asList(elements));
  }

  // Clone of Sets.newLinkedHashSet
  public static <E extends @Nullable Object> Set<E> copyToSet(Iterable<? extends E> elements) {
    Set<E> set = new LinkedHashSet<>();
    addAll(set, elements);
    return set;
  }

        value.isNotEmpty()
      ) {
        for (header in value) {
          if (cookies == null) cookies = mutableListOf()
          cookies.addAll(decodeHeaderAsJavaNetCookies(url, header))
        }
      }
    }

    return if (cookies != null) {
      Collections.unmodifiableList(cookies)
    } else {
      emptyList()
    }
  }

  /**