title: Struts2 + Jquery datatable compatibility Issue
body: <p>I am using jQuery DataTables with struts 2.</p>
  <p>Previously I was using the struts1 version so this code was working fine but when I upgrade strut with version 2. It's DataTables that is not working.</p>
  <p>Actually the some parameter is not getting set properly and believe that parameter is not getting send to server.</p>
  <p>Giving the below error on server:</p>
  <blockquote>
  <p>Unexpected Exception caught setting 'iDisplayLength'on class Error setting expression 'iDisplayLength' with value ['10', ]</p>
  <p>Unexpected Exception caught setting 'iDisplayStart' on class Error setting expression 'iDisplayStart' with value ['0', ]</p>
  </blockquote>
  <p>jQuery code is like</p>
  <pre><code> $('#dataTable').dataTable({
      &quot;sAjaxSource&quot;: &quot;listData.action&quot;,
      &quot;sServerMethod&quot;: &quot;POST&quot;,
      &quot;bFilter&quot;: false,
      &quot;bSort&quot;: true,
      &quot;bProcessing&quot;:true,
      &quot;bServerSide&quot;:true, 
      &quot;bSortClasses&quot;: false,
      &quot;sDom&quot;: '&lt;&quot;oTableGenerated&quot;lfirp&gt;t',
      &quot;bStateSave&quot;: true,
      &quot;aaSorting&quot;: [[ 0, &quot;desc&quot; ]],  
  </code></pre>