I'm not able to access the WSDL. Can you post it here for us?
Anne
On 9/26/07, Wojciech Buczak <[EMAIL PROTECTED]> wrote:
>
>
>
>
> Hi,
>
>
>
> I've encountered a problem while using AXIS-generated java client that tries
> to call a .NET web service. Using AXIS 1.4 I've generated the client's stub
> from WSDL of the OPC DA XML web service and tried to call some of it's
> interfaces. While some of them work fine, calling some others end up with
> exceptions, like:
>
>
>
> xisFault
>
> faultCode:
> {http://opcfoundation.org/webservices/XMLDA/1.0/}E_FAIL
>
> faultSubcode:
>
> faultString: Object reference not set to an instance of an object. -->
> Object reference not set to an instance of an object.
>
> faultActor:
>
> faultNode:
>
> faultDetail:
>
> {http://xml.apache.org/axis/}stackTrace:Object
> reference not set to an instance of an object. à Object reference not set to
> an instance of an object.
>
> at
> org.apache.axis.message.SOAPFaultBuilder.createFault(SOAPFaultBuilder.java:222)
>
>
>
>
>
> At the same time, there's no problem at all accessing the service with a
> .NET client! Trying to debug the problem, I've "sniffered" the SOAP request
> messages that are sent to the web service from both – the .NET client and my
> AXIS java client, and was a bit surprised to se a tag missing in the message
> request constructed by the AXIS client:
>
>
>
> The .NET request (calling "Read") interface:
>
>
>
> <s:Envelope
> xmlns:s="http://schemas.xmlsoap.org/soap/envelope/";>
>
> <s:Body
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
>
> <Read
> xmlns="http://opcfoundation.org/webservices/XMLDA/1.0/";>
>
> <Options ReturnItemTime="true" ReturnItemName="true" ClientRequestHandle=""
> LocaleID="en-us" />
>
> <ItemList MaxAge="1000">
>
> <Items ItemPath="DA20" ItemName="Dynamic/Analog Types/Int"
> ClientItemHandle="" />
>
> </ItemList>
>
> </Read>
>
> </s:Body>
>
> </s:Envelope>
>
>
>
>
>
> And the one coming from the AXIS client:
>
>
>
>
>
> <?xml version="1.0" encoding="UTF-8" ?>
>
> <soapenv:Envelope
> xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/";
> xmlns:xsd=http://www.w3.org/2001/XMLSchema
>
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";>
>
> <soapenv:Body>
>
> <Options ReturnDiagnosticInfo="false" ReturnErrorText="false"
> ReturnItemName="false" ReturnItemPath="false" ReturnItemTime="false"
>
> xmlns="http://opcfoundation.org/webservices/XMLDA/1.0/";
> />
>
> <ItemList
> xmlns="http://opcfoundation.org/webservices/XMLDA/1.0/";>
>
> <Items ItemName="Dynamic/Analog Types/Int" MaxAge="0" />
>
> </ItemList>
>
> </soapenv:Body>
>
> </soapenv:Envelope>
>
>
>
>
>
> Comparing the two above messages, one can see, that the "<Read>" does not
> exist in the "body" section of the request created by my Axis client. I
> guess that might be the reason why the SOAP server responds for that request
> with:
>
>
>
> <soap:Envelope
> xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xmlns:xsd="http://www.w3.org/2001/XMLSchema";><soap:Body><soap:Fault>
>
> <faultcode
> xmlns:q0="http://opcfoundation.org/webservices/XMLDA/1.0/";>q0:E_FAIL</faultcode>
>
> <faultstring>Object reference not set to an instance of an object.
> --> Object reference not set to an instance of an object.</faultstring>
>
> <detail/>
>
> </soap:Fault></soap:Body>
>
> </soap:Envelope>
>
>
>
> As it cannot parse properly the message. In effect, axis raises an
> exception, and my request fails.
>
>
>
>
>
>
>
> Has anyone ever had similar problem? If so, what's the best solution for it?
>
>
>
>
> PS. the WSDL I'm using:
> http://opcxml.dnsalias.org:8080/XmlDaSampleServer/Service.asmx?WSDL
>
>
>
> And the service:
> http://opcxml.dnsalias.org:8080/XmlDaSampleServer/Service.asmx
>
>
>
>
>
> Thanks a lot in advance for any help!
>
>
>
> Cheers
>
> Wojtek
>
>
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