}
      return newCapacity;
    }

    Builder() {}

    /**
     * Adds {@code element} to the {@code ImmutableCollection} being built.
     *
     * <p>Note that each builder class covariantly returns its own type from this method.
     *
     * @param element the element to add
     * @return this {@code Builder} instance
     * @throws NullPointerException if {@code element} is null
     */

      }
      return newCapacity;
    }

    Builder() {}

    /**
     * Adds {@code element} to the {@code ImmutableCollection} being built.
     *
     * <p>Note that each builder class covariantly returns its own type from this method.
     *
     * @param element the element to add
     * @return this {@code Builder} instance
     * @throws NullPointerException if {@code element} is null
     */

    @SuppressWarnings("rawtypes") // trying to test raw type
    Parameterized<?, ?, ?> parameterized =
        new Parameterized<TypeTokenResolutionTest, Bar, String>() {};
    TypeResolver typeResolver = TypeResolver.covariantly(parameterized.getClass());
    ParameterizedType resolved =
        (ParameterizedType) typeResolver.resolveType(parameterized.parameterizedType());
    assertEquals(TypeTokenResolutionTest.class, resolved.getOwnerType());

    if (resolver == null) {
      resolver = (covariantTypeResolver = TypeResolver.covariantly(runtimeType));
    }
    return resolver;
  }

  private TypeResolver getInvariantTypeResolver() {
    TypeResolver resolver = invariantTypeResolver;
    if (resolver == null) {
      resolver = (invariantTypeResolver = TypeResolver.invariantly(runtimeType));
    }
    return resolver;
  }

    @SuppressWarnings("rawtypes") // trying to test raw type
    Parameterized<?, ?, ?> parameterized =
        new Parameterized<TypeTokenResolutionTest, Bar, String>() {};
    TypeResolver typeResolver = TypeResolver.covariantly(parameterized.getClass());
    ParameterizedType resolved =
        (ParameterizedType) typeResolver.resolveType(parameterized.parameterizedType());
    assertEquals(TypeTokenResolutionTest.class, resolved.getOwnerType());

      Iterator<? extends T> iterator) {
    if (iterator instanceof PeekingImpl) {
      // Safe to cast <? extends T> to <T> because PeekingImpl only uses T
      // covariantly (and cannot be subclassed to add non-covariant uses).
      @SuppressWarnings("unchecked")
      PeekingImpl<T> peeking = (PeekingImpl<T>) iterator;
      return peeking;
    }
    return new PeekingImpl<>(iterator);
  }

      Iterator<? extends T> iterator) {
    if (iterator instanceof PeekingImpl) {
      // Safe to cast <? extends T> to <T> because PeekingImpl only uses T
      // covariantly (and cannot be subclassed to add non-covariant uses).
      @SuppressWarnings("unchecked")
      PeekingImpl<T> peeking = (PeekingImpl<T>) iterator;
      return peeking;
    }
    return new PeekingImpl<>(iterator);
  }

    /**
     * Represent an invariant type argument.
     * e.g. `<T>`
     */
    INVARIANT,

    /**
     * Represent a covariant type argument.
     * Also known as "extends-bound" or "upper bound".
     * e.g. `<? extends T>`
     */
    COVARIANT,

    /**
     * Represent a contravariant type argument.
     * Also known as "super-bound" or "lower bound".
     * e.g. `<? super T>`
     */

  @Override
  ImmutableCollection<E> delegateCollection() {
    return delegate;
  }

  ImmutableList<? extends E> delegateList() {
    return delegateList;
  }

  @SuppressWarnings("unchecked") // safe covariant cast!
  @Override
  public UnmodifiableListIterator<E> listIterator(int index) {
    return (UnmodifiableListIterator<E>) delegateList.listIterator(index);
  }

  @GwtIncompatible // not present in emulated superclass

       * TODO: When given an ImmutableList that's a sublist, copy the referenced
       * portion of the array into a new array to save space?
       */
      @SuppressWarnings("unchecked") // all supported methods are covariant
      ImmutableCollection<E> list = (ImmutableCollection<E>) elements;
      return list.asList();
    }
    return copyFromCollection(elements);
  }

  @JsMethod