src/main/webapp/404.xhtml

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:f="http://java.sun.com/jsf/core"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:p="http://primefaces.org/ui"
      xmlns:o="http://omnifaces.org/ui"      
      xmlns:jsf="http://xmlns.jcp.org/jsf">
    <h:head>
    </h:head>

    <h:body>
        <ui:composition template="/dataverse_template.xhtml">
            <ui:param name="pageTitle" value="#{bundle['error.404.page.title']} - #{dataverseServiceBean.findRootDataverse().name}"/>
            <ui:param name="showDataverseHeader" value="false"/>
            <ui:param name="loginRedirectPage" value="dataverse.xhtml"/>
            <ui:param name="showMessagePanel" value="#{true}"/>
            <ui:define name="body">
                <div class="alert alert-danger" role="alert" style="margin-top:3em;">
                    <o:form useRequestURI="true">
                        <h:outputText value="#{bundle['error.404.message']} " escape="false"/>
                        <h:outputFormat value="#{bundle['error.support.message']}" escape="false">
                            <o:param>
                                <p:commandLink value="#{settingsWrapper.supportTeamName}" oncomplete="PF('contactForm').show()" update=":contactDialog" actionListener="#{sendFeedbackDialog.initUserInput}">
                                    <f:setPropertyActionListener target="#{sendFeedbackDialog.messageSubject}" value=""/>
                                    <f:setPropertyActionListener target="#{sendFeedbackDialog.recipient}" value="#{null}"/>
                                    <f:setPropertyActionListener target="#{sendFeedbackDialog.userMessage}" value=""/>
                                    <f:setPropertyActionListener target="#{sendFeedbackDialog.userEmail}" value=""/>
                                </p:commandLink>                                
                            </o:param>
                        </h:outputFormat>   
                    </o:form>                  
                </div>                   
                <div class="row text-center" jsf:rendered="#{!widgetWrapper.widgetView}">
                    <o:form useRequestURI="true">
                        <input id="search404" type="text" class="ui-inputfield ui-inputtext ui-widget ui-state-default ui-corner-all" size="28" value="" placeholder="#{bundle['header.search.title']}"
                               style="font-size:1em;margin-right:1em;" onkeypress="if (event.keyCode == 13) {window.location = '/?q=' + document.getElementById('search404').value; return false;}" />
                        <a href="#" id="search404button" class="btn btn-default" onclick="window.location = '/?q=' + document.getElementById('search404').value; return false;">
                            <span class="glyphicon glyphicon-search"/> #{bundle.find}
                        </a>
                    </o:form>
                </div>
            </ui:define>
        </ui:composition>
    </h:body>
</html>