[owl-s] Problems while retrieving an "int" result of a service execution

[António Lopes]

Hello,
I'm new with OWL-S API and I'm using it to execute some OWL-S service descriptions.

After executing a certain OWL-S description and doing the following:

Object value = values.getValue(process.getOutputs().getParameter(((OutputImpl) 
(ol.get(i))).getJenaResource().getLocalName()));
System.out.println(value.toString());

...I get the following output: "<addReturn href="#id0"/>"

"id0" doesn't appear anywhere in the OWL-S file or the WSDL file.
"addReturn" is the name of the WSDL output parameter and is of type xsd:int.
However, if I change the type of the parameter from xsd:int to xsd:string (and 
changing accordingly in the web service), it returns the correct output.

Does anyone know the reason for this?

Thanks in advance for any contributions you may have,
Best regards,
-- 
António Lopes - antonio.luis at iscte.pt
ADETTI/ISCTE