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

            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;
        }

        final ChatSource source = new ChatSource();
        source.setIndex(1);
        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() {

    /**
     * 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) {
        this.title = title;
    }

    /**

        assertEquals("labels.facet_timestamp_title", view1.getTitle());
        assertEquals(4, view1.getQueryMap().size());
        FacetQueryView view2 = list.get(1);
        assertEquals("labels.facet_contentLength_title", view2.getTitle());
        assertEquals(5, view2.getQueryMap().size());
        FacetQueryView view3 = list.get(2);
        assertEquals("labels.facet_filetype_title", view3.getTitle());
        assertEquals(10, view3.getQueryMap().size());

         *
         * @return the source title
         */
        public String getTitle() {
            return title;
        }

        /**
         * Sets the source title.
         *
         * @param title the source title
         */
        public void setTitle(final String title) {
            this.title = title;
        }

        /**

        registerModifiedProperty("teletexTerminalIdentifier");
        this.teletexTerminalIdentifier = value;
    }

    public String getTitle() {
        checkSpecifiedProperty("title");
        return convertEmptyToNull(title);
    }

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

    public Long getUidNumber() {

     * @param title the raw title text to process
     * @param dataMap additional data map (not currently used)
     * @return the normalized title, or empty string if title is null
     */
    public String getTitle(final ResponseData responseData, final String title, final Map<String, Object> dataMap) {
        if (title == null) {
            return StringUtil.EMPTY; // empty
        }

                (et, vl) -> ((User) et).setTeletexTerminalIdentifier(DfTypeUtil.toString(vl)), "teletexTerminalIdentifier");
        setupEpg(_epgMap, et -> ((User) et).getTitle(), (et, vl) -> ((User) et).setTitle(DfTypeUtil.toString(vl)), "title");
        setupEpg(_epgMap, et -> ((User) et).getUidNumber(), (et, vl) -> ((User) et).setUidNumber(DfTypeUtil.toLong(vl)), "uidNumber");

        assertEquals("", documentHelper.getTitle(responseData, null, dataMap));
        assertEquals("", documentHelper.getTitle(responseData, "", dataMap));
        assertEquals("", documentHelper.getTitle(responseData, " ", dataMap));
        assertEquals("", documentHelper.getTitle(responseData, "  ", dataMap));
        assertEquals("", documentHelper.getTitle(responseData, "\t", dataMap));