able validation.
 <p>
 This method replaces the deprecated <a href="#setValidating(boolean)"><code>setValidating(boolean)</code></a>
 API.

 <p>
 Initially this property is set to <code>null</code>.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>schema</code> - Schema object to validate unmarshal operations against or null to disable validation</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>java.lang.UnsupportedOperationException</code> - could be thrown if this 