Eccezione Axis Fault durante la pubblicazione di un servizio WSDL su UDDI

[pcg4m3s]

sapete dirmi da cosa dipende questa eccezione??

- Using the Context ClassLoader
Requesting an authentication token...
Received authentication token.

Reading WSDL document [./Saluto.wsdl]...

Retrieving document at './Saluto.wsdl'.
WSDL document has been read.
  Service Name ... SalutoWSService

Publishing a WSDL Service Implementation as a UDDI businessService...
AxisFault
 faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server
 faultSubcode: 
 faultString: Fault string, and possibly fault code, not set
 faultActor: 
 faultNode: 
 faultDetail: 
	{http://xml.apache.org/axis/}stackTrace:Fault string, and possibly fault code, not set
	at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:222)
	at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:129)
	at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087)
	at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
	at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
	at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
	at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)
	at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)
	at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
	at org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
	at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)
	at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)
	at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
	at org.apache.axis.client.Call.invoke(Call.java:2767)
	at org.apache.axis.client.Call.invoke(Call.java:1792)
	at org.apache.juddi.proxy.AxisTransport.send(AxisTransport.java:59)
	at org.apache.juddi.proxy.RegistryProxy.execute(RegistryProxy.java:368)
	at org.apache.juddi.AbstractRegistry.saveService(AbstractRegistry.java:611)
	at pubblicazione.PublishServiceImplementation.publishServiceImplementation(PublishServiceImplementation.java:296)
	at pubblicazione.PublishServiceImplementation.main(PublishServiceImplementation.java:371)

	{http://xml.apache.org/axis/}hostname:nbook-francesco

Fault string, and possibly fault code, not set
	at org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:222)
	at org.apache.axis.message.SOAPFaultBuilder.endElement(SOAPFaultBuilder.java:129)
	at org.apache.axis.encoding.DeserializationContext.endElement(DeserializationContext.java:1087)
	at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
	at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
	at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
	at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
	at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
	at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)
	at org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:227)
	at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
	at org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
	at org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:62)
	at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)
	at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
	at org.apache.axis.client.Call.invoke(Call.java:2767)
	at org.apache.axis.client.Call.invoke(Call.java:1792)
	at org.apache.juddi.proxy.AxisTransport.send(AxisTransport.java:59)
	at org.apache.juddi.proxy.RegistryProxy.execute(RegistryProxy.java:368)
	at org.apache.juddi.AbstractRegistry.saveService(AbstractRegistry.java:611)
	at pubblicazione.PublishServiceImplementation.publishServiceImplementation(PublishServiceImplementation.java:296)
	at pubblicazione.PublishServiceImplementation.main(PublishServiceImplementation.java:371)
Fault string, and possibly fault code, not set
	at org.apache.juddi.handler.RegistryExceptionHandler.unmarshal(RegistryExceptionHandler.java:84)
	at org.apache.juddi.proxy.RegistryProxy.execute(RegistryProxy.java:396)
	at org.apache.juddi.AbstractRegistry.saveService(AbstractRegistry.java:611)
	at pubblicazione.PublishServiceImplementation.publishServiceImplementation(PublishServiceImplementation.java:296)
	at pubblicazione.PublishServiceImplementation.main(PublishServiceImplementation.java:371)
Exception in thread "main" java.lang.NullPointerException
	at pubblicazione.PublishServiceImplementation.publishServiceImplementation(PublishServiceImplementation.java:327)
	at pubblicazione.PublishServiceImplementation.main(PublishServiceImplementation.java:371)
done.
UDDI businessService published

[pcg4m3s]

possibile che nessuno mi da dare una mano?