问题
In my application, I hit an external web service. For this web service, I have got the WSDL and generated model classes and Stub classes using WSDL2JAVA. The problem now I face is, while hitting the external web service, I receive null from the web service and no exception or error.
While debugging, I have noticed that _call.invoke (below line) in the stub class returns a null object.
'java.lang.Object _resp = _call.invoke(new java.lang.Object[] {parameters});'
I have monitored the Web service communication through a monitoring application. I could see the request being sent and the response coming back. But, in Stub class, I receive null object.
来源：https://stackoverflow.com/questions/14210447/axis-webservice-call-returns-null