edit xmlns attribute with jaxb marshaller
package myproject.myapp;
import javax.xml.bind.*;
public class Demo {
public static void main(String[] args) throws Exception {
JAXBContext jc = JAXBContext.newInstance(RootElement.class);
RootElement rootElement = new RootElement();
Marshaller marshaller = jc.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
marshaller.setProperty(Marshaller.JAXB_SCHEMA_LOCATION, "http://www.mysite.com/abc.xsd");
marshaller.marshal(rootElement, System.out);
}
}