ers:</span></dt>
<dd><code>cls</code> - the class of the object to be returned.  This is
             normally either the underlying query 
             implementation class or an interface that it 
             implements.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>an instance of the specified class</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../javax/persistence/PersistenceException.html" title="class in javax.persistence">PersistenceException</a></code> -