My WSDL imports several schemas. Some schemas import/include other schemas. Some schemas are imported/included by several schemas.
Running WSDL2java with an ant task with the following options
wsdl2java -d src -b custom.xml -exsh true -autoNameResolution -verbose MyExample.wsdl
(custom.xml is used to disable wrapper-style)
I got several errors such as:
[java] WSDLToJava Error: Thrown by JAXB:
[java] Thrown by JAXB:
[java] 'CodeGroup' is already defined
[java] at line 175 column 2 of schema file:.../OTA/2010B/OTA_CommonTypes.xsd
[java] (related to above error) the first definition appears here
[java] at line 45 column 2 of schema file:/.../My_CommonTypes.xsd
OTA_CommonTypes.xsd defines the following type:
My_CommonTypes.xsd defines the following type:
OTA_CommonTypes.xsd is included by a schema defining a target namespace "http://www.opentravel.org/OTA/2003/05/OTA2010B"
My_CommonTypes.xsd is included by a schema defining a target namespace "http://xml.example.com/MyTypes"
XML schemas as well as WSDL are valid (other frameworks generates code without any issue - and even CXF WSDL validator returns a success) and the types should be generated in distinct packages, therefore without any conflicts.
My assumption is that CXF wsdl2java fails at resolving the type namespace with schemas which are chameleon schemas (no targetNamespace attributes) which is the case for all OTA type schemas.
A work-around that I would like to avoid as I'm exposing the WSDL to different clients using different frameworks and I don't want to create 1 WSDL per framework, would be to add targetNamespace attributes to all chameleon schemas.