Struts2 align check box vertical

Normally the struts checkboxlist in struts2 diaply the check boxes horizontally. In most of application we want to
display the check boxes vetrically ie line by line. For aligning this as vertical we have to do as specified below
1) You have to create a directory template in your src folder
2) create a folder with name of the template you want to create (vertical-checkbox)
3) copy the struts-2.1.6/src/core/src/main/resources/template/simple/checkboxlist.ftl file to this directory content of this file is as follows. Before the </@s.iterator> you have to put a <br> tag as I given in this

<#--
/*
* $Id: checkboxlist.ftl 720258 2008-11-24 19:05:16Z musachy $
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
-->
<#assign itemCount = 0/>
<#if parameters.list??>
<@s.iterator value="parameters.list">
<#assign itemCount = itemCount + 1/>
<#if parameters.listKey??>
<#assign itemKey = stack.findValue(parameters.listKey)/>
<#else>
<#assign itemKey = stack.findValue('top')/>
</#if>
<#if parameters.listValue??>
<#assign itemValue = stack.findString(parameters.listValue)?default("")/>
<#else>
<#assign itemValue = stack.findString('top')/>
</#if>
<#assign itemKeyStr=itemKey.toString() />
<input type="checkbox" name="${parameters.name?html}" value="${itemKeyStr?html}" id="${parameters.name?html}-${itemCount}"<#rt/>
<#if tag.contains(parameters.nameValue, itemKey)>
checked="checked"<#rt/>
</#if>
<#if parameters.disabled?default(false)>
disabled="disabled"<#rt/>
</#if>
<#if parameters.title??>
title="${parameters.title?html}"<#rt/>
</#if>
<#include "/${parameters.templateDir}/simple/scripting-events.ftl" />
<#include "/${parameters.templateDir}/simple/common-attributes.ftl" />
/>
<label for="${parameters.name?html}-${itemCount}" class="checkboxLabel">${itemValue?html}</label>
<br>
</@s.iterator>
<#else>

</#if>

4) <s:checkboxlist list="urlist" name="selectedValues" listKey="id" listValue="descrption" theme="vertical-checkbox"></s:checkboxlist>
this will give you vertical check box list
only difference is that here you have to specify the theme which is same as the directory u have created in the template directory in the src folder of your project