XPath evaluation results in empty target node

Question

I'm attempting to consume a WSDL and generate binding classes using maven-jaxb2-plugin.

The WSDL is this,

<wsdl:definitions>
  <wsdl:types>
  ...
  </wsdl:types>
  ...
  <wsdl:message name="IServiceWeb_GetPaymentInfo_InputMessage">
    <wsdl:part name="parameters" element="tns:GetPaymentInfo"/>
  </wsdl:message>
  ...
  <wsdl:portType name="IServiceWeb">
      ...
      <wsdl:operation name="GetPaymentInfo">
         <wsdl:input wsaw:Action="*****" message="tns:IServiceWeb_GetPaymentInfo_InputMessage"/>
         <wsdl:output wsaw:Action="*****" message="tns:IServiceWeb_GetPaymentInfo_OutputMessage"/>
       </wsdl:operation>
  </wsdl:portType>

When I initially attempted to generate classes, I got this error,

org.xml.sax.SAXParseException: A class/interface with the same name "org.package.GetPaymentInfoResponse" is already in use. Use a class customization to resolve this conflict.

I added a binding.xjb file with this content,

<?xml version="1.0" encoding="UTF-8"?>
<bindings xmlns="http://java.sun.com/xml/ns/jaxb" xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance"
    xsi:schemaLocation=" http://java.sun.com/xml/ns/jaxb http://java.sun.com/xml/ns/jaxb/bindingschema_2_0.xsd"
    xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" version="2.1">
    <bindings
        node="wsdl:definitions/wsdl:message[@name='IServiceWeb_GetPaymentInfo_OutputMessage']/wsdl:part[@name='parameters']">
        <class name="GetPaymentInfoOutputMessage" />
    </bindings>
</bindings>

and the error I get is,

com.sun.istack.SAXParseException2: XPath evaluation of "wsdl:definitions/wsdl:message[@name='IServiceWeb_GetPaymentInfo_OutputMessage']/wsdl:part[@name='parameters']" results in empty target node

Any suggestions to get these files generated?

EDIT I had the wrong node declared, IServiceWeb_GetPaymentInfo_InputMessage should be IServiceWeb_GetPaymentInfo_InputMessage, the corrected binding is,

<?xml version="1.0" encoding="UTF-8"?>
<bindings xmlns="http://java.sun.com/xml/ns/jaxb" xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance"
    xsi:schemaLocation=" http://java.sun.com/xml/ns/jaxb http://java.sun.com/xml/ns/jaxb/bindingschema_2_0.xsd"
    xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" version="2.1">
    <bindings
        node="wsdl:definitions/wsdl:message[@name='IServiceWeb_GetPaymentInfo_InputMessage']/wsdl:part[@name='parameters']">
        <class name="GetPaymentInfoOutputMessage" />
    </bindings>
</bindings>

and the error message is,

com.sun.istack.SAXParseException2: XPath evaluation of "wsdl:definitions/wsdl:message[@name='IServiceWeb_GetPaymentInfo_InputMessage']/wsdl:part[@name='parameters']" results in empty target node

Answer 1

SOLVED

My binding file was missing the schemaLocation attribute giving the import value of the specific XSD, which is shown here, and the correct XPath expression for my specific schema,

<bindings schemaLocation="https://myURI/mySchema.xsd">
    <bindings
        node="//xs:complexType[@name='GetPaymentInfoResponse']">
        <class name="GetPaymentInfoResponseType" />
    </bindings>
</bindings>

Additionally, using JDK 1.6, I needed to d/l and add jaxb 2.2 jars to my jdk endorsed lib dir as described here, http://cxf.apache.org/docs/23-migration-guide.html

Using either of two alternate methods, {JAVA_HOME}/bin/wsimport.exe or using jaxws-maven-plugin, caused a "Use a class customization to resolve this conflict" error that was resolved using this configuration,

                <configuration>
                <args>
                    <arg>-B-XautoNameResolution</arg>
                    </args>
                            </configuration>

but would not run with the endorsed jars as above.

So, my classes are generated, now it's on to exercising the web service. Maven is a nice way to generate class files.