DSpace adding a java page to /about

AboutPage.java

/**
 * AboutPage.java
 *
 * Basead on the code by Peter Dietz:
 * https://gist.github.com/842301#file_dspace_add_about.diff (acessed 11-05-23)
 *
 * Modified to work with internationalization (i18n locales) and breadcrumbs
 * by Andre Nito Assada e Josi Perez Alvarez on 11-05-23
 */
 
package org.dspace.app.xmlui.aspect.artifactbrowser;
 
 
import org.apache.log4j.Logger;
import org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer;
import org.dspace.app.xmlui.wing.WingException;
import org.dspace.app.xmlui.wing.element.Body;
import org.dspace.app.xmlui.wing.element.Division;
import org.dspace.app.xmlui.wing.element.PageMeta;
import org.xml.sax.SAXException;
import java.io.IOException;
import java.io.Serializable;
import java.sql.SQLException;
import org.apache.cocoon.caching.CacheableProcessingComponent;
import org.apache.excalibur.source.SourceValidity;
import org.apache.excalibur.source.impl.validity.NOPValidity;
import org.dspace.app.xmlui.utils.UIException;
import org.dspace.app.xmlui.wing.Message;
import org.dspace.authorize.AuthorizeException;
 
 
/**
 * Display about us page.
 *
 * @author Peter Dietz
 */
public class AboutPage extends AbstractDSpaceTransformer
{
 
/**
 * Internationalization
 * 110523
 */
    public static final Message T_dspace_home =
        message("xmlui.general.dspace_home");
    public static final Message T_title =
        message("xmlui.ArtifactBrowser.AboutPage.title");
    public static final Message T_trail =
        message("xmlui.ArtifactBrowser.AboutPage.trail");
    public static final Message T_head =
        message("xmlui.ArtifactBrowser.AboutPage.head");
    public static final Message T_para =
        message("xmlui.ArtifactBrowser.AboutPage.para");
 
    private static Logger log = Logger.getLogger(AboutPage.class);
 
        /**
        * Add a page title and trail links.
        */
        public void addPageMeta(PageMeta pageMeta) throws SAXException, WingException {
            // Set the page title
 
            // pageMeta.addMetadata("title").addContent("About Us");
            // 110523 modified page title with internationalization and added breadcrumbs
            pageMeta.addMetadata("title").addContent(T_title);
            // add trail
            pageMeta.addTrailLink(contextPath + "/",T_dspace_home);
            pageMeta.addTrail().addContent(T_trail);
        }
 
        /**
        * Add some basic contents
        */
        public void addBody(Body body) throws SAXException, WingException {
            //Division division = body.addDivision("about-page", "primary");
            //Division.setHead("About Us - Institutional Repository");
            //Division.addPara("We are an institutional repository that specializes in storing your digital artifacts.");
 
            //110523 modified with internationalization
            Division division = body.addDivision("about-page", "primary");
            division.setHead(T_head);
            division.addPara(T_para);
        }
}

copied verbatim from: https://wiki.duraspace.org/display/DSPACE/Manakin+theme+tutorial#Manakinthemetutorial-Addingstaticpages