Ajf事件中的JSF句柄异常

Question

我跟着这个solution 并且在发生ViewExpiredException时完美地工作，但是当我检查（firefox实用程序）视图错误时，我看到它替换它，但只是在普通视图的body标签内，我的意思是，视图是异常的原因。视图错误有一个css类在他自己的body标签中声明，但我不知道，为什么不替换整个视图错误，而只是取所有内容（在他的body标签之后）的视图错误并插入里面普通视图的body标签？

为了得到这个行为，我有一个登录视图（我在上面提到的普通视图），只需要等到会话到期，然后我尝试登录（提交视图的形式），这会触发一个ExceptionHandler来呈现de view错误。

这是一些片段：

login.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">

  <h:head>
    <f:facet name="first">
      <meta http-equiv="X-UA-Compatible" content="IE=edge" />
      <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
      <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"/>
      <meta name="apple-mobile-web-app-capable" content="yes" />
    </f:facet>
    <title>PrimeFaces</title>
  </h:head>

  <h:body styleClass="login-body">
    <div class="login-panel ui-fluid">
      <div class="ui-g">
    <div class="ui-g-12 logo-container">
      <p:graphicImage name="images/logo-colored.png" library="theme-layout" />
      <h1>Login to Your Account</h1>
      <h2>WELCOME</h2>
    </div>
    <div class="ui-g-12">
      <p:inputText placeholder="User" />
    </div>
    <div class="ui-g-12">
      <p:password placeholder="Password" feedback="false"/>
    </div>
    <div class="ui-g-12 chkbox-container">
      <p:selectBooleanCheckbox id="remember-me" />
      <p:outputLabel for="remember-me" value="Remember Me"/>
    </div>
    <div class="ui-g-12 button-container">
      <p:commandButton type="submit" value="Log in" icon="fa fa-user" styleClass="orange-btn" action="#{menu.login}" update="frmLoginPromo">
    </div>
      </div>
    </div>

    <h:outputStylesheet name="css/layout-#{guestPreferences.layout}.css" library="theme-layout" />
  </h:body>

</html>

error.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">

    <h:head>
        <f:facet name="first">
            <meta http-equiv="X-UA-Compatible" content="IE=edge" />
            <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
            <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0"/>
            <meta name="apple-mobile-web-app-capable" content="yes" />
        </f:facet>
        <title>PrimeFaces - Error </title>
    </h:head>

    <h:body styleClass="exception-body">
        <div class="exception-panel">
            <p:graphicImage name="images/icon-error.png" library="theme-layout" />

            <h1>Error Occured</h1>
            <p>An error occured, please try again later.</p>
        </div>

        <h:outputStylesheet name="css/layout-blue.css" library="theme-layout" />
    </h:body>

</html>

custom exception handler.Java

    @Override
    public void handle() throws FacesException{
    final Iterator<ExceptionQueuedEvent> lclExceptionQueue = getUnhandledExceptionQueuedEvents().iterator();
    final FacesContext lclFacesContext = FacesContext.getCurrentInstance();
    final Map<String, Object> requestMap = lclFacesContext.getExternalContext().getSessionMap();
    while (lclExceptionQueue.hasNext()){
    ExceptionQueuedEvent event = lclExceptionQueue.next();
    ExceptionQueuedEventContext context = (ExceptionQueuedEventContext) event.getSource();
    Throwable lclThrowable = context.getException();


    try{
            if (lclThrowable instanceof ViewExpiredException){
 lclFacesContext.setViewRoot(lclFacesContext.getApplication().getViewHandler().createView(lclFacesContext, "/error.xhtml"));
                lclFacesContext.getPartialViewContext().setRenderAll(true);
                lclFacesContext.renderResponse();
            }
        }finally{
            lclExceptionQueue.remove();
        }
        }
        getWrapped().handle();
    }

渲染错误视图后的样子如下

Inspecte view error请告诉我，我做错了什么？