}
        }

        if (!errors.isEmpty()) {
            def changes = errors + warnings
            return acceptOrReject(member, changes, Violation.error(member, changes.join(" ")))
        }
        if (!warnings.isEmpty()) {
            return Violation.warning(member, warnings.join(" "))
        }
        return null
    }

            runAnt(ant)
        } catch (Exception e) {
            // ant failed, so see if we have buffered output to emit, then rethrow the failure
            String buffer = outputBuffer.toString()
            if (buffer.isEmpty() == false) {
                logger.error("=== Ant output ===\n${buffer}")
            }
            throw e
        }
    }

   * @throws NullPointerException if any key or value in {@code multimap} is null
   */
  public static <K, V> ImmutableListMultimap<K, V> copyOf(
      Multimap<? extends K, ? extends V> multimap) {
    if (multimap.isEmpty()) {
      return of();
    }

    // TODO(lowasser): copy ImmutableSetMultimap by using asList() on the sets
    if (multimap instanceof ImmutableListMultimap) {

        for (E e : set2) {
          if (!set1.contains(e)) {
            size++;
          }
        }
        return size;
      }

      @Override
      public boolean isEmpty() {
        return set1.isEmpty() && set2.isEmpty();
      }

      @Override
      public UnmodifiableIterator<E> iterator() {
        return new AbstractIterator<E>() {
          final Iterator<? extends E> itr1 = set1.iterator();

        messages.add(message);
    }

    @Override
    public String toString() {
        return render("");
    }

    public String render(String indentation) {
        if (messages.isEmpty()) {
            return indentation + "There were no validation errors.";
        }

        StringBuilder message = new StringBuilder();
        for (int i = 0; i < messages.size(); i++) {

    }

    /**
     * Checks if there are any failures recorded.
     *
     * @return true if there is at least one failure, false otherwise
     */
    public boolean hasFailure() {
        return !failures.isEmpty();
    }

    /**
     * Returns the list of failures.
     *
     * @return a List of Throwable objects representing the failures
     */
    public List<Throwable> getFailures() {
        return failures;

    }

    private void adjustAccessorComment(DocCommentImpl docComment) {
        // Replace 'Returns the ...'/'Sets the ...' with 'The ...'
        List<Element> nodes = docComment.getDocbook();
        if (nodes.isEmpty()) {
            return;
        }

        Element firstNode = nodes.get(0);
        if (!firstNode.getNodeName().equals("para") || !(firstNode.getFirstChild() instanceof Text)) {
            return;
        }

  }

  @Override
  public boolean isEmpty() {
    return false;
  }

  @Override
  @SuppressWarnings("unchecked") // TODO(cpovirk): Use a shared unsafeCompare method.
  public ContiguousSet<C> intersection(ContiguousSet<C> other) {
    checkNotNull(other);
    checkArgument(this.domain.equals(other.domain));
    if (other.isEmpty()) {
      return other;
    } else {

    }

    /**
     * @throws Exception
     */
    @Test
    public void testIsEmpty() throws Exception {
        assertThat(list.isEmpty(), is(true));
        list.addLast("1");
        assertThat(list.isEmpty(), is(not(true)));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testContaines() throws Exception {

        assertEquals(DirectoryCacheScope.IMMEDIATE_CHILDREN, entry.getScope());
        assertFalse(entry.isComplete());
        assertFalse(entry.hasChanges());
        assertTrue(entry.getChildren().isEmpty());
    }

    @Test
    public void testUpdateChild() {
        String childName = "file1.txt";
        long size = 1024L;
        long lastModified = System.currentTimeMillis();