List<String> listWithNulls = new ArrayList<>();
        listWithNulls.add(null);
        listWithNulls.add(null);
        assertEquals(0L, MemoryUtil.sizeOf(listWithNulls));

        // Mixed content collection
        List<Object> mixedList = new ArrayList<>();
        mixedList.add("test");
        mixedList.add(123);
        mixedList.add(null);
        assertEquals(84L, MemoryUtil.sizeOf(mixedList));

    allTasks.add(completeSuccessfullyRunnable);
    allTasks.add(completeExceptionallyRunnable);
    allTasks.add(cancelRunnable);
    allTasks.add(setFutureCompleteSuccessfullyRunnable);
    allTasks.add(setFutureCompleteExceptionallyRunnable);
    allTasks.add(setFutureCancelRunnable);
    for (int k = 0; k < 50; k++) {

        new ImmutableList.Builder<String>().add("a").add("b").add("a").add("c").build();
    assertEquals(asList("a", "b", "a", "c"), list);
  }

  @GwtIncompatible("Builder impl")
  public void testBuilderForceCopy() {
    ImmutableList.Builder<Integer> builder = ImmutableList.builder();
    Object[] prevArray = null;
    for (int i = 0; i < 10; i++) {
      builder.add(i);
      assertNotSame(builder.contents, prevArray);

   * element, and the overall size of the collection, by one.
   *
   * <p>To both add the element and obtain the previous count of that element, use {@link
   * #add(Object, int) add}{@code (element, 1)} instead.
   *
   * @param element the element to add one occurrence of; may be null only if explicitly allowed by
   *     the implementation
   * @return {@code true} always, since this call is required to modify the multiset, unlike other

        foo.setDuplicateHostName("foo.com");
        duplicateHostHelper.duplicateHostList.add(foo);
        DuplicateHost bar = new DuplicateHost();
        bar.setRegularName("www.bar.com");
        bar.setDuplicateHostName("mail.bar.com");
        duplicateHostHelper.duplicateHostList.add(bar);
        DuplicateHost hoge = new DuplicateHost();
        hoge.setRegularName("www.foo.com");

    }

    protected List<ColumnInfo> ccil() {
        List<ColumnInfo> ls = newArrayList();
        ls.add(columnCreatedBy());
        ls.add(columnCreatedTime());
        ls.add(columnSuggestWord());
        ls.add(columnTargetLabel());
        ls.add(columnTargetRole());
        ls.add(columnUpdatedBy());
        ls.add(columnUpdatedTime());
        return ls;
    }

    }

    protected List<ColumnInfo> ccil() {
        List<ColumnInfo> ls = newArrayList();
        ls.add(columnBoostExpr());
        ls.add(columnCreatedBy());
        ls.add(columnCreatedTime());
        ls.add(columnSortOrder());
        ls.add(columnUpdatedBy());
        ls.add(columnUpdatedTime());
        ls.add(columnUrlExpr());
        return ls;
    }

        ImmutableSortedSet.orderedBy(STRING_LENGTH)
            .add("in", "the", "quick", "jumped", "over", "a")
            .build();
    assertThat(set).containsExactly("a", "in", "the", "over", "quick", "jumped").inOrder();
  }

  public void testExplicit_ordering_dupes() {
    SortedSet<String> set =
        ImmutableSortedSet.orderedBy(STRING_LENGTH)

  }

  /**
   * A sensible default implementation of {@link #add(Object)}, in terms of {@link #add(int,
   * Object)}. If you override {@link #add(int, Object)}, you may wish to override {@link
   * #add(Object)} to forward to this implementation.
   *
   * @since 7.0
   */
  protected boolean standardAdd(@ParametricNullness E element) {
    add(size(), element);
    return true;
  }

  /**

* Start the title with a verb. For example `Add`, `Refactor`, `Fix`, etc. This way the title will say the action that the PR does. Like `Add support for teleporting`, instead of `Teleporting wasn't working, so this PR fixes it`.
* Edit the text of the PR title to start in "imperative", like giving an order. So, instead of `Adding support for teleporting` use `Add support for teleporting`.