duplicating namespaces

[Yves Langisch]

All,
I try to access a message style web service with following client code
(1.2RC1):
       Call call = (Call) new Service().createCall();
       call.setTargetEndpointAddress(ENDPOINT);
       InputStream input = new FileInputStream("h:/COMPLEXCompany.xml");
       SOAPEnvelope reqEnv = new SOAPEnvelope();
       SOAPBody body = reqEnv.getBody();
       body.addChildElement(new SOAPBodyElement(input));
       SOAPEnvelope resEnv = call.invoke(reqEnv);
The soap-request I see with TcpMon on the wire has set the namespaces
explicitely for each element in the request:
snippet:
<UserAgent xmlns="http://a.b.c/schema/sd/20040701/SalaryDeclarationContainer";>  
    
           <Producer
xmlns="http://a.b.c/schema/sd/20040701/SalaryDeclarationContainer";>Producer</Producer>
      
           <Name
xmlns="http://a.b.c/schema/sd/20040701/SalaryDeclarationContainer";>Test</Name> 
     
           <Version
xmlns="http://a.b.c/schema/sd/20040701/SalaryDeclarationContainer";>0.1</Version>
      
           <Certificate
xmlns="http://a.b.c/schema/sd/20040701/SalaryDeclarationContainer";>None</Certificate>
  
        </UserAgent>

But the appropriate snippet in the file I put into the envelope is as follows:
<SalaryDeclarationRequest
   xmlns="http://a.b.c/schema/sd/20040701/SalaryDeclarationContainer";
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
   <UserAgent>
       <Producer>Producer</Producer>
       <Name>Test</Name>
       <Version>0.1</Version>
       <Certificate>None</Certificate>
   </UserAgent>...
Any ideas why this duplicating of namespaces is happening?
Yves