XOM API for Processing XML with Java

["Ondřej Černoš" <cernoso AT gmail.com>]

Hello all,

I use XOM in Spring-WS as the DOM of choice. I run into an exception
mentioned in the subject. The offending XML looks like this:

<env:Envelope
        xmlns:env="http://schemas.xmlsoap.org/soap/envelope/";
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
        xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/";
        xmlns:xsd="http://www.w3.org/2001/XMLSchema";>
        <env:Body>
                <n1:PAYLOAD_ROOT
                        xmlns:n1="http://www.company.com/namespace";>
                        <n1:something1
                                xmlns:n1="http://www.company.com/namespace";>
                                value1
                        </n1:something1>
                        <n1:something2
                                xmlns:n1="http://www.company.com/namespace";>
                                value2
                        </n1:something2>
                        <n1:something3
                                xmlns:n1="http://www.company.com/namespace";>
                                value3
                        </n1:something3>
                </n1:PAYLOAD_ROOT>
        </env:Body>
</env:Envelope>

And the stacktrace like this:

nu.xom.IllegalNameException: Attribute objects are not used to
represent  namespace declarations
        at nu.xom.Attribute._setNamespace(Attribute.java:489)
        at nu.xom.Attribute.<init>(Attribute.java:168)
        at nu.xom.Attribute.<init>(Attribute.java:122)
        at nu.xom.converters.DOMConverter.makeElement(DOMConverter.java:388)
        at nu.xom.converters.DOMConverter.convert(DOMConverter.java:349)
        at 
org.springframework.ws.server.endpoint.AbstractXomPayloadEndpoint.handleDomSource(AbstractXomPayloadEndpoint.java:97)
        at 
org.springframework.ws.server.endpoint.AbstractXomPayloadEndpoint.invoke(AbstractXomPayloadEndpoint.java:56)
        at 
org.springframework.ws.server.endpoint.adapter.PayloadEndpointAdapter.invoke(PayloadEndpointAdapter.java:48)
...etc...

AbstractXomPayloadEndpoint. is trying to create the Document object
from the payload part of the document - with PAYLOAD_ROOT as the root
element of the Document.

The problem with the XML document is the redefinition of the namespace
in the payload root subelements. That is the thing that triggers the
exception.

Is it XOM bug or spring's incorrect XOM usage?

All run on Java 1.6 and XOM 1.1.

Thanks for tips,
Ondrej Cernos