title: p:selectOneMenu ajax change event not working
body: <p>I have the following component on the xhtml:</p>
  
  <pre><code>            &lt;p:outputLabel for="concept" value="Concept" /&gt;
          &lt;p:selectOneMenu id="concept" value="#{dIGRCController.digrc.qconce}"
              requiredMessage="Debe de seleccionar un concepto."
              required="#{request.getParameter('validate')}"&gt;
  
              &lt;f:selectItem itemLabel="Concept" itemValue="" /&gt;
              &lt;f:selectItems value="#{cCRX1Controller.ccrx1.concepts.entrySet()}"
                  var="concepts" itemValue="#{concepts.key}"
                  itemLabel="#{concepts.value}" /&gt;
  
              &lt;p:ajax event="change" execute="@this" listener="#{dIGRCController.testing()}" /&gt;
  
          &lt;/p:selectOneMenu&gt;
  </code></pre>
  
  <p>The values are coming correctly from the cCRX1Controller class. However, when I select an option, I am trying to display the value. the #{dIGRCController.testing()} looks like this:</p>
  
  <pre><code>public void testing()
  {
      System.out.println("sdfsd");
  }
  </code></pre>
  
  <p>What am I doing wrong? I checked <a href="https://stackoverflow.com/questions/18329433/pselectonemenu-onchange-event-doesnt-work">this</a> question but could't figure out what the problem is.</p>