Code HTML invalide dans le fil d'Ariane

<%@page import="org.apache.commons.lang3.StringUtils"%>
<%@page import="com.kportal.core.config.MessageHelper"%>
<%@page import="com.kportal.ihm.utils.FrontUtil"%>
<%@page import="com.univ.utils.ContexteUtil"%>
<%@page import="java.util.List"%>
<%@page import="org.apache.commons.lang3.tuple.Pair"%>
<%@page import="java.util.Iterator"%>

<% List<Pair<String,String>> filArianeMap = FrontUtil.getArianeLinks(ContexteUtil.getContexteUniv().getCodeRubriquePageCourante());

if(!filArianeMap.isEmpty()){%>
    <ol id="fil_ariane" itemscope itemtype="http://schema.org/BreadcrumbList">
        <span><%=MessageHelper.getCoreMessage("ST_FIL_ARIANE_VOUS_ETES_ICI")%>&nbsp;:</span> ////////////////////////// FAIL
        <%int index = 0;
        Iterator<Pair<String,String>> entryIterator = filArianeMap.iterator();
        while ( entryIterator.hasNext() ) {
            Pair<String,String> arianeEntry = entryIterator.next();
            boolean lastItem = !entryIterator.hasNext();
            %>
            <li itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem">
                <%if(StringUtils.isEmpty(arianeEntry.getValue())){%>
                    <span itemprop="item">
                <%}else{%>
                    <a itemprop="item" href="<%= arianeEntry.getValue() %>">
                <%}%>
                    <span itemprop="name">
                        <%if(lastItem){%>
                            <em>
                        <%}%>
                        <%=arianeEntry.getKey()%>
                        <%if(lastItem){%>
                            </em>
                        <%}%>
                    </span>
                <%if(StringUtils.isEmpty(arianeEntry.getValue())){%>
                    </span>
                <%}else{%>
                    </a>
                <%}%>
                <meta itemprop="position" content="<%=index%>" />
            </li>
            <%if( !lastItem ){%>
                &rarr; //////////////////////// FAIL
            <%}%>
            <%index++;
        }%>
    </ol>
<%}%>