How can I specify JAXB customizations externally to a WSDL file?

Question

I have a WSDL file for a service implemented in .NET. I also have the same file with some "customizations" made by a 3rd-party to make the file tolerable to wsimport, mostly of the form:

<s:annotation>
  <s:appinfo>
    <jaxb:property name="result"/>
  </s:appinfo>
</s:annotation>

I'd like to be able to process the original WSDL from the vendor plus these overrides, but I'd like to specify them externally. I see that I can use the -b option for wsimport for "binding files" and I've tried to write an override file that currently looks like this:

<jxb:bindings version="1.0"
  xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
  xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <jxb:bindings node="//xs:element[@name='MyElementResult']">
    <jxb:property name="result"/>
  </jxb:bindings>
</jxb:bindings>

I've verified that "MyElementName" does in fact exist, in an element found here:

<?xml version="1.0" encoding="utf-8"?>
<wsdl:definitions
     xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
     xmlns:tm="http://microsoft.com/wsdl/mime/textMatching/"
     xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
     xmlns:mime="http://schemas.xmlsoap.org/wsdl/mime/"
     xmlns:tns="vendor-uri"
     xmlns:s="http://www.w3.org/2001/XMLSchema"
     xmlns:s2="http://microsoft.com/wsdl/types/"
     xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/"
     xmlns:http="http://schemas.xmlsoap.org/wsdl/http/"
     targetNamespace="vendor-namespace"
     xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/">

  [...]
  <s:element name="MyElementResponse">
    <s:complexType>
      <s:sequence>
        <s:element minOccurs="0" maxOccurs="1" name="MyElementResult" type="tns:Result" />

I'm getting this warning (and therefore no changes) from wsimport:

[ERROR] XPath evaluation of "//xs:element[@name='MyElementResult']" results in empty target node
  line 4 of file:/Users/..../wsdl/custom-bindings.xjb

Am I missing something in my declaration(s)? Do I have my XPath expression incorrect? If I get my XPath/overrides working, is it formatted correctly in order to achieve the same result as if I had edited the original WSDL?

Is this even possible using external files, or will I have to re-modify any future versions of the WSDL with these same changes?

Answer 1

You need to give the schema location in your bindings XML file.

<jxb:bindings version="1.0"
     xmlns:jxb="http://java.sun.com/xml/ns/jaxb"
     xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <jxb:bindings 
         schemaLocation="PATH_TO_YOUR_WSDL#types?schema1"
         node="//xs:schema[@targetNamespace='SCHEMA_NAMESPACE']">
        <jxb:bindings node="//xs:element[@name='MyElementResult']">
            <jxb:property name="result"/>
        </jxb:bindings>
    </jxb:bindings>
</jxb:bindings>

The #types?schema1 after the WSDL file name will specify which schema in the WSDL you are binding, starting at 1.