* to trim memory usage, build using {@code builder.build().trimmed()}.
   */
  public static Builder builder(int initialCapacity) {
    checkArgument(initialCapacity >= 0, "Invalid initialCapacity: %s", initialCapacity);
    return new Builder(initialCapacity);
  }

  /**
   * Returns a new, empty builder for {@link ImmutableIntArray} instances, with a default initial

  }

  private static void checkInitialCapacity(
      int concurrencyLevel, int initialCapacity, int segmentSize) {
    LocalCache<Object, Object> map =
        makeLocalCache(
            createCacheBuilder()
                .concurrencyLevel(concurrencyLevel)
                .initialCapacity(initialCapacity));
    for (int i = 0; i < map.segments.length; i++) {

    final ArrayList<E> contents;

    public Builder() {
      this.contents = Lists.newArrayList();
    }

    Builder(int initialCapacity) {
      this.contents = Lists.newArrayListWithCapacity(initialCapacity);
    }

    @CanIgnoreReturnValue
    @Override
    public Builder<E> add(E element) {
      contents.add(checkNotNull(element));
      return this;
    }

    assertThrows(IllegalArgumentException.class, () -> builder.initialCapacity(-1));
  }

  public void testInitialCapacity_setTwice() {
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().initialCapacity(16);
    assertThrows(IllegalStateException.class, () -> builder.initialCapacity(16));
  }

  @J2ktIncompatible
  @GwtIncompatible // CacheTesting

    assertThrows(IllegalArgumentException.class, () -> builder.initialCapacity(-1));
  }

  public void testInitialCapacity_setTwice() {
    CacheBuilder<Object, Object> builder = CacheBuilder.newBuilder().initialCapacity(16);
    assertThrows(IllegalStateException.class, () -> builder.initialCapacity(16));
  }

  @J2ktIncompatible
  @GwtIncompatible // CacheTesting

  }

  private static void checkInitialCapacity(
      int concurrencyLevel, int initialCapacity, int segmentSize) {
    LocalCache<Object, Object> map =
        makeLocalCache(
            createCacheBuilder()
                .concurrencyLevel(concurrencyLevel)
                .initialCapacity(initialCapacity));
    for (int i = 0; i < map.segments.length; i++) {

   * @throws IllegalArgumentException if {@code initialCapacity} is negative
   * @throws IllegalStateException if an initial capacity was already set
   */
  @CanIgnoreReturnValue
  public CacheBuilder<K, V> initialCapacity(int initialCapacity) {
    checkState(
        this.initialCapacity == UNSET_INT,
        "initial capacity was already set to %s",
        this.initialCapacity);
    checkArgument(initialCapacity >= 0);

    checkInitialCapacity(4, 8, 2);
  }

  private static void checkInitialCapacity(
      int concurrencyLevel, int initialCapacity, int segmentSize) {
    MapMakerInternalMap<Object, Object, ?, ?> map =
        makeMap(
            createMapMaker().concurrencyLevel(concurrencyLevel).initialCapacity(initialCapacity));
    for (int i = 0; i < map.segments.length; i++) {
      assertEquals(segmentSize, map.segments[i].table.length());
    }

    checkInitialCapacity(4, 8, 2);
  }

  private static void checkInitialCapacity(
      int concurrencyLevel, int initialCapacity, int segmentSize) {
    MapMakerInternalMap<Object, Object, ?, ?> map =
        makeMap(
            createMapMaker().concurrencyLevel(concurrencyLevel).initialCapacity(initialCapacity));
    for (int i = 0; i < map.segments.length; i++) {
      assertEquals(segmentSize, map.segments[i].table.length());
    }

    // The first `size` elements are non-null.
    @Nullable Object[] contents;
    int size;
    boolean forceCopy;

    ArrayBasedBuilder(int initialCapacity) {
      checkNonnegative(initialCapacity, "initialCapacity");
      this.contents = new @Nullable Object[initialCapacity];
      this.size = 0;
    }

    /*
     * Expand the absolute capacity of the builder so it can accept at least the specified number of