message notificationFault
parts 
notificationFault
element ex:NotificationFault
used by 
Operation onNotification in PortType NotificationListener
source  
<wsdl:message name="notificationFault">
  <wsdl:part name="notificationFault" element="ex:NotificationFault"/>
</wsdl:message>

WSDL documentation generated by XMLSpy WSDL Editor http://www.altova.com/xmlspy