title: Dropdown for Integer array using html:select
body: <p>I have been working on stuts app where I'm using an Integer ArrayList. I need to create a dropdown to list the arraylist.</p>
  
  <p>I have been trying using html:select --> html:optioncollection.</p>
  
  <p>But I am getting error of <code>Cannot create iterator for com.SelectTagForm@18488ef</code>.</p>
  
  <p>code:</p>
  
  <pre><code>&lt;html:optionsCollection name="selectTagForm" 
  label="grade" value="grade" /&gt;
  </code></pre>
  
  <p>Thanks in advance!!!</p>