The parameter name cannot be empty or bigger than 255 characters.

[Alessandro Folli]

Hi All.

I'm writing a java class in order to invoke SharePoint webservices using 
Axis. I can successfully authenticate and get response from operations 
like GetUserCollectionFromWeb or GetGroupCollectionFromWeb defined in 
/_vti_bin/UserGroup.asmx.

When I try to contact the operation GetGroupInfo I receive this error:

Exception of type 'Microsoft.SharePoint.SoapServer.SoapServerException' 
was thrown.

<axis2ns1:errorstring 
xmlns:axis2ns1="_http://schemas.microsoft.com/sharepoint/soap/_";> The 
parameter name cannot be empty or bigger than 255 
characters.</axis2ns1:errorstring>

The soap message I'm sending to the webservice is:

<soap:Envelope xmln:soap="_http://schemas.xmlsoap.org/soap/envelope/_"; 
xmlns:xsd="_http://www.w3.org/2001/XMLSchema_"; 
xmlns:xsi="_http://www.w3.org/2001/XMLSchema-instance_";>
 <soap:Body>
   <GetGroupInfo 
xmlns="_http://schemas.microsoft.com/sharepoint/soap/directory/_";>
     <groupName>HelpGroup</groupName>
   </GetGroupInfo>
 </soap:Body>
</soap:Envelope>

Here the code:

       try{

             // Create the request message
             OMFactory factory = OMAbstractFactory.getOMFactory();
             OMNamespace omNs = 
factory.createOMNamespace("http://schemas.xmlsoap.org/soap/envelope/";, 
"soap");
             OMNamespace xsiNs = 
factory.createOMNamespace("http://www.w3.org/2001/XMLSchema-instance";, 
"xsi");
             OMNamespace xsdNs = 
factory.createOMNamespace("http://www.w3.org/2001/XMLSchema";, "xsd");
            
             OMElement env = factory.createOMElement("Envelope", omNs);
             env.declareNamespace(xsiNs);
             env.declareNamespace(xsdNs);

             OMElement body = factory.createOMElement("Body", omNs);

             // Create method
             OMAttribute methodXmlns = 
factory.createOMAttribute("xmlns", null, 
"http://schemas.microsoft.com/sharepoint/soap/directory/";);
             OMElement method = factory.createOMElement("GetGroupInfo", 
null);
             method.addAttribute(methodXmlns);
            
             OMElement elementGroupName = 
factory.createOMElement("groupName", null);
             elementGroupName.setText(groupName);
             method.addChild(elementGroupName);

             // Add method to body
             body.addChild(method);
            
             // Add body to envelop
             env.addChild(body);
            
            
             // DEBUG
             System.out.println(env.toString());
            
            
             // Send the request
             ServiceClient client = new ServiceClient();
             // Create option object
             Options options = new Options();
             // Setting target EPR
             options.setTo(new EndpointReference(this.EndpointURL));
             options.setTransportInProtocol(Constants.TRANSPORT_HTTP);
             //options.setUseSeparateListener(true);

             // Setting action ,and which can be found from the wsdl of 
the service
             
options.setAction("http://schemas.microsoft.com/sharepoint/soap/directory/GetGroupInfo";);
          
             // Setting Timeout
             options.setTimeOutInMilliSeconds(2000);
            
             HttpTransportProperties.Authenticator
                     auth = new HttpTransportProperties.Authenticator();
                     auth.setUsername(this.wsUser);
                     auth.setPassword(this.wsPassword);
                     auth.setDomain(this.wsDomain);
                     auth.setHost(this.wsHost);
                     //auth.setPort(this.wsPort);
                     auth.setAllowedRetry(true);
                     ;

             options.setProperty(HTTPConstants.AUTHENTICATE,auth);

            
             // Setting created options into service client
             client.setOptions(options);
            
            
             OMElement res = client.sendReceive(env);
             System.out.println(res);
     
     

       }catch (AxisFault axisFault) {

                 axisFault.printStackTrace();
                 //System.out.println(axisFault.getReason());
                 System.out.println(axisFault.getDetail().toString());

      }


What could be wrong? Any help would be appreciated.

Thanks,

 Alessandro


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