How can I generate a sitemap.xml in Wicket?

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// Create a new Wicket Page for your sitemap.
public class SitemapPage extends WebPage {

}

// Override the render method in your SitemapPage class to generate the sitemap.xml content.
@Override
public void render(PageParameters parameters) {
    super.render(parameters);

    // Set the content type of the response to "text/xml"
    getRequestCycle().getResponse().setContentType("text/xml");

    // Generate the sitemap.xml content
    StringBuilder sb = new StringBuilder();
    sb.append("<?xml version="1.0" encoding="UTF-8"?>");
    sb.append("<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">");
    // Add your URLs to the sitemap
    sb.append("<url><loc>https://www.example.com/page1</loc></url>");
    sb.append("<url><loc>https://www.example.com/page2</loc></url>");
    sb.append("</urlset>");

    // Write the sitemap.xml content to the response
    try {
        getRequestCycle().getResponse().write(sb.toString());
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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public class MyApplication extends WebApplication {

    @Override
    protected void init() {
        super.init();
        mountPage("/sitemap.xml", SitemapPage.class);
    }
}

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public class SitemapPage extends WebPage implements ISitemappable {
    // Your page code here
}

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@Override
public List<SitemapEntry> getSitemapEntries() {
    List<SitemapEntry> entries = new ArrayList<>();
    entries.add(new SitemapEntry(SitemapEntry.ChangeFreq.DAILY, 1.0, "https://www.example.com/home"));
    entries.add(new SitemapEntry(SitemapEntry.ChangeFreq.WEEKLY, 0.8, "https://www.example.com/about"));
    // Add more entries for other pages
    return entries;
}

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SitemapXmlResourceReference sitemapRef = new SitemapXmlResourceReference();
getResourceSettings().getResourceReferences().add(sitemapRef);

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SitemapXmlGenerator sitemapGenerator = new SitemapXmlGenerator(sitemapRef, SitemapPage.class);
sitemapGenerator.generate();