[JAXB] StringBuffer element issue

[Kris Lee]

When marshaling an object via JAXB with a StringBuffer attribute, that attribute becomes blank. I wrote a small program to demonstrate the problem:

import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;

@XmlRootElement
public class JaxbTest {

	private String valueOne;
	private StringBuffer valueTwo;

	public static void main(String[] args) throws Exception {

		JaxbTest object = new JaxbTest();
		object.setValueOne("12345");
		object.setValueTwo(new StringBuffer("54321"));
		
		JAXBContext context = JAXBContext.newInstance(JaxbTest.class);
		Marshaller marshaller = context.createMarshaller();
		marshaller.marshal(object, System.out);
	}

	@XmlElement
	public String getValueOne() {
		return valueOne;
	}
	
	public void setValueOne(String valueOne) {
		this.valueOne = valueOne;
	}
	
	@XmlElement
	public StringBuffer getValueTwo() {
		return valueTwo;
	}
	
	public void setValueTwo(StringBuffer valueTwo) {
		this.valueTwo = valueTwo;
	}
}

The output is as follows:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?><jaxbTest><valueOne>12345</valueOne><valueTwo/></jaxbTest>

Does anyone know why "valueTwo" is not being marshaled correctly? BTW, i am using java 1.6.0_22.

Thanks!!!

[Mohamed Sanaulla]

What is the Schema you are using for generating the XML?