JAX-WS Intermittent JAXB Marshalling errors
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                 Key: AXIS2-2145
                 URL: https://issues.apache.org/jira/browse/AXIS2-2145
             Project: Axis 2.0 (Axis2)
          Issue Type: Bug
            Reporter: Rich Scheuerle


The JAXB Marshaller code is generating bad xml in intermittent situations.
Specifically, an xmlns:xmlns is being written in the root element of the JAXB 
emission.

Stack Dump = org.apache.axis2.AxisFault: javax.xml.stream.XMLStreamException: 
The namespace prefix "xmlns" must not be declared.; nested exception is: 
        org.apache.axiom.om.OMException: javax.xml.stream.XMLStreamException: 
The namespace prefix "xmlns" must not be declared.

        at 
org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:284)

Solution Proposal:

Current code:

    JAXB Marshaller ---->  Woodstox XMLStreamWriter

New code:

    JAXB Marshaller -----> XMLStreamWriterFilter ----> Woodstox XMLStreamWriter

This filter will detect the erroneous xmlns:xmlns and swallow it (with logs).

We can use the logged information to open a formal defect against JAXB.





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