a href="ValidationEventHandler.html" title="interface in jakarta.xml.bind"><code>ValidationEventHandler</code></a>
     returns false from its <code>handleEvent</code> method or the
     <code>Unmarshaller</code> is unable to perform the XML to Java
     binding.  See <a href="#unmarshalEx">Unmarshalling XML Data</a></dd>
<dd><code>java.lang.IllegalArgumentException</code> - If the <code>reader</code> parameter is null</dd>
<dd><code>java.lang.IllegalStateException</code> - If <code>reader</code> is not poi