source.setTitle("Test Document");

        message.addSource(source);

        assertEquals(1, message.getSources().size());
        assertEquals("Test Document", message.getSources().get(0).getTitle());
    }

    @Test
    public void test_addSourceWithNullSources() {
        final ChatMessage message = new ChatMessage();
        message.setSources(null);

            .map(ChangelogEntry::getBreaking)
            .filter(Objects::nonNull)
            .sorted(comparing(ChangelogEntry.Breaking::getTitle))
            .collect(
                groupingBy(
                    ChangelogEntry.Breaking::isNotable,
                    groupingBy(ChangelogEntry.Breaking::getArea, TreeMap::new, Collectors.toList())

        public boolean isNotable() {
            return notable;
        }

        public void setNotable(boolean notable) {
            this.notable = notable;
        }

        public String getTitle() {
            return title;
        }

        public void setTitle(String title) {
            this.title = title;
        }

        public String getBody() {
            return body;

        queryMap.values().stream().distinct().forEach(facetInfo::addQuery);
    }

    /**
     * Gets the title for this facet query view.
     *
     * @return the title string
     */
    public String getTitle() {
        return title;
    }

    /**
     * Sets the title for this facet query view.
     *
     * @param title the title to set
     */
    public void setTitle(final String title) {