NullPointerException.class, () -> builder.addAll((Iterable<String>) iterableWithNulls));
    }
  }

  // We need to test that asList() really does return the original list.
  @SuppressWarnings("InlineMeInliner")
  public void testAsList() {
    ImmutableList<String> list = ImmutableList.of("a", "b");
    assertSame(list, list.asList());
  }

  @SuppressWarnings("ModifiedButNotUsed")

    assertEquals(-1, Iterators.indexOf(iterator, equalTo("bob")));
    assertFalse(iterator.hasNext());
  }

  @SuppressWarnings({"deprecation", "InlineMeInliner"}) // test of a deprecated method
  public void testUnmodifiableIteratorShortCircuit() {
    Iterator<String> mod = Lists.newArrayList("a", "b", "c").iterator();

  }

  @SuppressWarnings({
    "deprecation", // test of deprecated method
    // We need to test that from(FluentIterable) really is just a null check.
    "InlineMeInliner",
  })
  public void testFrom_alreadyFluentIterable() {
    FluentIterable<Integer> iterable = FluentIterable.from(asList(1));
    assertSame(iterable, FluentIterable.from(iterable));
  }

  public void testOf() {

    iterator.next();
    assertThrows(UnsupportedOperationException.class, () -> iterator.remove());
    assertEquals("[a, b, c]", iterable.toString());
  }

  @SuppressWarnings({"deprecation", "InlineMeInliner"}) // test of a deprecated method
  public void testUnmodifiableIterableShortCircuit() {
    List<String> list = newArrayList("a", "b", "c");
    Iterable<String> iterable = Iterables.unmodifiableIterable(list);