EncodingStyle error in JWSDP 1.1 generated SOAP XML?

Question

Hi,
I ran wscompile to generate some stubs for a simple "fortune cookie" web service. I know this service works fine because I have tested it with clients using other toolkits. So the stubs are generated, I use them to call the service and it fails. I trapped the XML being sent to the service, it is included below. An "encodingStyle" is being inserted into one of my parameter elements, but it is not being given a value so it is invalid. Can anyone tell me whether this is a bug in JWSDP or how to fix it so that this value is set correctly or is not set at all and defaults to the parent's encodingStyle?
<?xml version="1.0" encoding="UTF-8"?>..
<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:enc="http://schemas.xmlsoap.org/soap/encoding/"
xmlns:ns0="tallan.com/FortuneCookieRequest"
env:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<env:Body>
<ns0:fortuneRequest env:encodingStyle="">
<ns0:minLines>1</ns0:minLines>
<ns0:maxLines>1</ns0:maxLines>
</ns0:fortuneRequest>
</env:Body>
</env:Envelope>..

Answer 1

For a SOAP response to be deserialize, com.sun.xml.rpc.encoding.SOAPDeserializationContext.verifyEncodingStyle() will be called, but SOAPDeserializationContext only pushed an empty string in the encodingStyleContext stack. It assumes the SOAP response received will tell it about encoding styles in the response; but for some SOAP implementations (such as Delphi, and maybe .NET?), this is not true.
A workaround is to open your SOAP client stub source file (generated by wscompile, you have to keep it), finding the below text:
protected void _readFirstBodyElement
Insert the following statement below it:
deserializationContext.pushEncodingStyle(SOAPConstants.NS_SOAP_ENCODING);
Then Delphi/.NET web services work happily with JWSDP generated clients.