title: Display tag prefix and spring webflow
body: <p>I am working on an interface using Spring web flow.
  I have this [B]uebersicht.xhtml[/B]</p>
  
  <pre><code>&lt;!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"&gt;
  &lt;ui:composition xmlns="http://www.w3.org/1999/xhtml"
                  xmlns:ui="http://java.sun.com/jsf/facelets"
                  xmlns:display="http://displaytag.sf.net"
                  xmlns:h="http://java.sun.com/jsf/html"
                  template="/WEB-INF/layouts/standard.xhtml"&gt;
  
      &lt;ui:define name="content"&gt;      
  
          &lt;h:dataTable value="#{arrayVar}" var="conv"&gt;
                    &lt;h:column&gt;
                                 &lt;h:outputText value="#{conv.id}"/&gt;
                    &lt;/h:column&gt;
          &lt;/h:dataTable&gt;
  
          &lt;div&gt;
              &lt;div&gt;
                  Table:
                  &lt;display:table id="row" name="arrayVar" pagesize="3" requestURI="/spring/uebersicht"&gt;
                      &lt;display:column title="row number" sortable="true" sortName="rowNum"&gt;
                          &lt;h:outputText value="${row_rowNum}"/&gt;
                      &lt;/display:column&gt;
                      &lt;display:column title="name" sortable="true" sortName="name"&gt;
                          &lt;h:outputText value="${row.id}"/&gt;
                      &lt;/display:column&gt;
                  &lt;/display:table&gt;
              &lt;/div&gt;
          &lt;/div&gt;
  
      &lt;/ui:define&gt;
  
  &lt;/ui:composition&gt;
  </code></pre>
  
  <p>arrayVar is the variable where I save the value from an action on one flow:</p>
  
  <pre><code>&lt;on-start&gt;
          &lt;evaluate expression="databaseActionsBean.getArrayVar()" result="flowScope.arrayVar " /&gt;
      &lt;/on-start&gt;
  </code></pre>
  
  <p>Using the first example, I get the values that I need. But I want to use displayTag, so I built this java class:</p>
  
  <pre><code>@Controller
  @RequestMapping(value="/spring/uebersicht")
  public class UebersichtController {
  
      private DatabaseActionsBean databaseActionsBean = new DatabaseActionsBean();
  
      @RequestMapping(method = RequestMethod.GET)
      public String conversationsToShow(Model model) {
          model.addAttribute("arrayVar", databaseActionsBean.getStoppedConversations());
          return "uebersicht";
      }
  }
  </code></pre>
  
  <p>But the second table does not give me any result, and I can see this warning message</p>
  
  <blockquote>
    <p>Warning: This page calls for XML namespace <a href="http://displaytag.sf.net" rel="nofollow">http://displaytag.sf.net</a>
    declared with prefix display but no taglibrary exists for that
    namespace.</p>
  </blockquote>
  
  <p>What could be the problem?</p>
  
  <p>I include the pom dependencies:</p>
  
  <pre><code>&lt;!--Display tag--&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;displaytag&lt;/groupId&gt;
              &lt;artifactId&gt;displaytag&lt;/artifactId&gt;
              &lt;version&gt;1.2&lt;/version&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;org.slf4j&lt;/groupId&gt;
              &lt;artifactId&gt;jcl104-over-slf4j&lt;/artifactId&gt;
              &lt;version&gt;1.4.2&lt;/version&gt;
          &lt;/dependency&gt;
          &lt;dependency&gt;
              &lt;groupId&gt;taglibs&lt;/groupId&gt;
              &lt;artifactId&gt;standard&lt;/artifactId&gt;
              &lt;version&gt;1.1.2&lt;/version&gt;
          &lt;/dependency&gt;
  </code></pre>
  
  <p>Thanks in advance</p>