Test case for possible bug in JacksonXML

App.java

package com.rambris;

import com.ctc.wstx.stax.WstxInputFactory;
import com.ctc.wstx.stax.WstxOutputFactory;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.dataformat.xml.XmlMapper;

import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
import java.io.IOException;

public class App {
    protected XMLStreamWriter writer;
    protected XmlMapper mapper;

    public App() throws XMLStreamException {
        XMLInputFactory xmlInputFactory = new WstxInputFactory();
        XMLOutputFactory xmlOutputFactory = new WstxOutputFactory();
        
        /* Setting this to true makes the application run but does not write namespace */
        xmlOutputFactory.setProperty(XMLOutputFactory.IS_REPAIRING_NAMESPACES, false);
        
        mapper=new XmlMapper(xmlInputFactory);
        mapper.enable(SerializationFeature.INDENT_OUTPUT);

        writer=xmlOutputFactory.createXMLStreamWriter(System.out);

    }


    protected void startDocument() throws XMLStreamException {
        writer.writeStartDocument("utf-8", "1.0");
        writer.writeCharacters("\n");
        writer.setDefaultNamespace("http://eClub.Schemas.ImportContact");
        writer.writeStartElement("contacts");
        writer.writeDefaultNamespace( "http://eClub.Schemas.ImportContact");
        writer.writeCharacters("\n");
    }

        protected void endDocument() throws XMLStreamException {
        writer.writeCharacters("\n");
        writer.writeEndDocument();
    }


    public void test() throws XMLStreamException, IOException {
        startDocument();

        Bean bean=new Bean(1, "Dude");
        mapper.writeValue(writer, bean);


        endDocument();
    }

    public static void main( String[] args ) throws Exception {
        App app=new App();
        app.test();

    }
}

Bean.java

package com.rambris;

import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlProperty;
import com.fasterxml.jackson.dataformat.xml.annotation.JacksonXmlRootElement;

@JacksonXmlRootElement(localName = "new")
public class Bean {
    @JacksonXmlProperty(isAttribute = true)
    private String source="ECOM";
    private Member member;

    public Bean(int id, String name) {
        this.member=new Member(id, name);
    }

    public Member getMember() {
        return member;
    }

    public class Member {
        private final int id;
        private final String name;

        public Member(int id, String name) {
            this.id = id;
            this.name = name;
        }

        public int getId() {
            return id;
        }

        public String getName() {
            return name;
        }
    }
}

dependencies.xml

    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.9.7</version>
    </dependency>

    <dependency>
      <groupId>com.fasterxml.jackson.dataformat</groupId>
      <artifactId>jackson-dataformat-xml</artifactId>
      <version>2.9.7</version>
    </dependency>

    <dependency>
      <groupId>com.fasterxml.woodstox</groupId>
      <artifactId>woodstox-core</artifactId>
      <version>5.0.3</version>
    </dependency>

expected-result.xml

<?xml version='1.0' encoding='utf-8'?>
<contacts xmlns="http://eClub.Schemas.ImportContact">
<new source="ECOM">
  <member>
    <id>1</id>
    <name>Dude</name>
  </member>
</new>

</contacts>

result.xml

<?xml version='1.0' encoding='utf-8'?>
<contacts>
<new source="ECOM">
  <member>
    <id>1</id>
    <name>Dude</name>
  </member>
</new>

</contacts>