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From "Christoph Ludwig (JIRA)" <>
Subject [jira] Commented: (AXIS-2682) wsdl2Java generates invalid empty string namespaces
Date Thu, 26 Jul 2007 07:24:31 GMT


Christoph Ludwig commented on AXIS-2682:

I realized after submitting the issue report that the attribute xmlns="" is used to bring
the elements back into the global namespace in case an outer element changed the default namespace
and can be certainly valid. Thus, the first part of my report was in fact misleading, sorry.

The real problem is, though, that in my example both the data and the length element do not
belong to the global  namespace but to "". (By accident,
I submitted the report before I was finished, therefore this is mentioned in the first comment

So the subject of this issue should rather read "WSDL2Java spuriously puts complex type members
in the global namespace". And that *is* a bug, I think... 

> wsdl2Java generates invalid empty string namespaces
> ---------------------------------------------------
>                 Key: AXIS-2682
>                 URL:
>             Project: Axis
>          Issue Type: Bug
>          Components: WSDL processing
>    Affects Versions: 1.4
>         Environment: Eclipse 3.2 on Mac OS 10.4.10 (Intel)
>            Reporter: Christoph Ludwig
>         Attachments: bytearray.wsdl
> I generated with WSDL2Java a service skeleton and client stubs for the attached WSDL
which I used for interoperability tests. When I investigated errors, I found the following
in the generated SOAP request:
>   <?xml version="1.0" encoding="UTF-8"?>
>      <soapenv:Envelope xmlns:soapenv="" xmlns:xsd=""
>         <soapenv:Body>
>            <AcceptBase64 xmlns="">
>               <data xmlns="">SGVsbG8gV29ybGQh</data>
>               <length xmlns="">12</length>
>            </AcceptBase64>
>         </soapenv:Body>
>      </soapenv:Envelope>
> Note the empty namespaces in the data and length elements. The W3C recommendation "Namespaces
in XML 1.0" states explicitly: "The empty string, though it is a legal URI reference, cannot
be used as a namespace name" ( 

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