private void executePlan() {
            // Even if the build is halted, we still want to execute TEARDOWN and after:* steps
            // for proper cleanup, so we don't return early here
            Clock global = getClock(GLOBAL);
            global.start();
            lock.readLock().lock();
            try {
                // Process build steps in a logical order:

        assertEquals(4, sitemaps.length);
        assertEquals("http://www.example.com/page1.html", sitemaps[0].getLoc());
        assertEquals("http://www.example.com/page2.html", sitemaps[1].getLoc());
        assertEquals("http://www.example.com/page3.html", sitemaps[2].getLoc());
        assertEquals("https://www.example.com/page4.html", sitemaps[3].getLoc());
    }

    public void test_parseXmlSitemapsIndex_missingLoc() {

     */
    public SitemapFile() {
        // Default constructor
    }

    /*
     * (non-Javadoc)
     *
     * @see org.codelibs.fess.crawler.entity.Sitemap#getLoc()
     */
    @Override
    public String getLoc() {
        return loc;
    }

    /**
     * Sets the location of the sitemap.
     * @param loc the location URL to set
     */
    public void setLoc(final String loc) {

 */
public interface Sitemap extends Serializable {

    /**
     * Retrieves the location (URL) of the sitemap.
     *
     * @return the location of the sitemap as a String.
     */
    String getLoc();

    /**
     * Retrieves the last modification date of the sitemap.
     *
     * @return A string representing the last modification date.
     */
    String getLastmod();

            for (final Sitemap sitemap : sitemapSet.getSitemaps()) {
                if (sitemap != null) {
                    requestDataSet.add(RequestDataBuilder.newRequestData().get().url(sitemap.getLoc()).build()); // TODO priority
                }
            }
            throw new ChildUrlsException(requestDataSet, this.getClass().getName() + "#process");
        } catch (final IOException e) {

     */
    public SitemapImage() {
        // Default constructor
    }

    /**
     * Gets the location URL of the image.
     * @return the image URL
     */
    public String getLoc() {
        return loc;
    }

    /**
     * Sets the location URL of the image.
     * @param loc the image URL to set
     */
    public void setLoc(final String loc) {
        this.loc = loc;
    }

     */
    private List<SitemapAlternateLink> alternateLinks;

    /**
     * Returns the location URL of this sitemap entry.
     * @return the location URL
     */
    @Override
    public String getLoc() {
        return loc;
    }

    /**
     * Sets the location URL of this sitemap entry.
     * @param loc the location URL to set
     */
    public void setLoc(final String loc) {

            if (URL_ELEMENT.equals(elementName)) {
                if (sitemapUrl != null) {
                    // Only add sitemap URL if loc is not empty
                    final String loc = sitemapUrl.getLoc();
                    if (loc != null && !loc.trim().isEmpty()) {
                        sitemapSet.addSitemap(sitemapUrl);
                    } else {
                        if (logger.isDebugEnabled()) {