tionEventHandler</code>.
 <p>
 The <code>ValidationEventHandler</code> will be called by the Jakarta XML Binding Provider
 if any validation errors are encountered during calls to any of the 
 unmarshal methods.  If the client application does not register a 
 <code>ValidationEventHandler</code> before invoking the unmarshal methods,
 then <code>ValidationEvents</code> will be handled by the default event
 handler which will terminate the unmarshal operation after the first 
 error or fatal error is encount