Iterable<TypeB> blist = Iterables.filter(alist, TypeB.class);
    assertThat(blist).containsExactly(hasBoth).inOrder();
  }

  @GwtIncompatible // Iterables.filter(Iterable, Class)
  public void testFilterByType_forEach() throws Exception {
    HasBoth hasBoth1 = new HasBoth();
    HasBoth hasBoth2 = new HasBoth();
    Iterable<TypeA> alist = Lists.newArrayList(hasBoth1, new TypeA(), hasBoth2, new TypeA());