[xfire-user] wsgen gives ClassCastException and "Could not find holder type".

[Geert Engels]

Using Ant wsgen task from xfire 1.2.3 against WSDL from 
https://adwords.google.com/api/adwords/v8/CampaignService?wsdl I get:

   [wsgen] 15-Dec-2006 09:20:04 org.codehaus.xfire.gen.Wsdl11Generator 
generate
   [wsgen] INFO: Generating code for WSDL at 
file:/c:/work/workspace/bcp/src/etc/wsdl/ggl/CampaignService.wsdl with a ba
e URI of file:/c:/work/workspace/bcp/src/etc/wsdl/ggl/CampaignService.wsdl
   [wsgen] 15-Dec-2006 09:20:04 
org.codehaus.xfire.gen.jsr181.AbstractServiceGenerator generate
   [wsgen] INFO: Creating class com.teracode.bcp.api.ggl.CampaignInterface

BUILD FAILED
C:\work\workspace\bcp\build\build.xml:72: 
*org.codehaus.xfire.gen.GenerationException: Could not find holder type.

*This seems to be the same as question posted on Nov 2nd here 
http://www.mail-archive.com/user@xfire.codehaus.org/msg01259.html to 
which there never was a reply.*
*
Running the Ant task through a debugger, I can intercept an embedded 
ClassCastException, which originates at line 
org.codehaus.xfire.gen.jsr181.AbstractServiceGenerator.java:252.

The code there is as follows:

protected JType getHolderType(GenerationContext context,MessagePartInfo 
part)
       throws GenerationException
   {
       JType genericType = 
context.getSchemaGenerator().getType(context, part.getName(), 
part.getSchemaType().getSchemaType());
      
       try {
           JClass holder = 
context.getCodeModel().ref("javax.xml.ws.Holder");
*            holder = holder.narrow((JClass) genericType); /* THIS IS 
WHERE THE CLASSCASTEXCEPTION OCCURS */*
           return holder;
       } catch (Exception e) {
           throw new GenerationException("Could not find holder type.", e);
       }
   }


The MessagePartInfo, when the ClassCast is thrown, contains a schemaType 
which stringifies to 
"org.codehaus.xfire.aegis.type.basic.ObjectType[class=<null>,
QName={https://adwords.google.com/api/adwords/v8}responseTime]";.

Anybody know how to get Xfire wsgen to work with this WSDL? All others 
from WSDLs from Google AdWords API, not only this service but all 
others, and not only v8 but v7 and v6 as well, fail in the same way.

Thanks !

Geert.