ZSI -> CXF: Parameters coming in as NULL

Recounting a strange little compatibility issue I had between ZSI 2.0 and CXF 2.0.x. I was using CXF as the server, running from Maven using Jetty, and ZSI as the client. The parameters from the ZSI were arriving at the service implementation as null. With the web services logging turned on I could see that the SOAP packet was arriving OK, and looked good.

A little bit of digging round the web turned up this message.

The issue was that ZSI wasn’t explicitly namespacing the elements, and so CXF was not seeing them. The solution was to add elementFormDefault=”qualified” to my WSDL definition, and rebuild the ZSI stubs.

<wsdl:definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
...
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xsd:elementFormDefault="qualified"
xsd:attributeFormDefault="unqualified">
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