If a class has #XmlElement property, it cannot have #XmlValue property error - jaxb

Question

I am getting below exception when I am trying to marshel below java classes to below expected xml.
Exception:
If a class has #XmlElement property, it cannot have #XmlValue property.
XML:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<parent>
I am the parent element of mixedtype.
<child>I am the child element</child>
</parent>
Parent.java
#XmlRootElement(name = "parent")
public class Parent{
protected List<Child> child= new ArrayList<Child>();
protected List<String> text= new ArrayList<String>();
#XmlElementRef(name="child",type=Child.class)
public List<Child> getChild() {
return child;
}
#XmlMixed
public List<String> getText() {
return text;
}
public void setChild(Child value) {
this.child.add(value);
}
public void setText(String value) {
this.text.add(value);
}
}
Child.java
public class Child {
#XmlValue
protected String value;
public String getValue() {
return value;
}
public void setValue(String value) {
this.value = value;
}
}

Answer 1

For the above the XML I tried this and seems to work fine for me:
XML:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<parent>
I am the parent element of mixedtype.
<child>I am the child element</child>
</parent>
Parent.class:
#XmlRootElement(name = "parent")
#Data
#NoArgsConstructor
#XmlAccessorType(XmlAccessType.FIELD)
public class Parent {
#XmlMixed
#XmlAnyElement
private List<Object> textContent;
#XmlElement(name = "child")
private String child;
}
My Main class:
public class JaxbExampleMain {
public static void main(String[] args) throws JAXBException, XMLStreamException {
final InputStream inputStream = Unmarshalling.class.getClassLoader().getResourceAsStream("parent.xml");
final XMLStreamReader xmlStreamReader = XMLInputFactory.newInstance().createXMLStreamReader(inputStream);
final Unmarshaller unmarshaller = JAXBContext.newInstance(Parent.class).createUnmarshaller();
final Parent parent = unmarshaller.unmarshal(xmlStreamReader, Parent.class).getValue();
System.out.println(parent.toString());
Marshaller marshaller = JAXBContext.newInstance(Parent.class).createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FRAGMENT, Boolean.TRUE);
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, Boolean.TRUE);
marshaller.marshal(parent, System.out);
}
}
Following is the output that I am getting:
Parent(textContent=[
I am the parent element of mixedtype.
,
], child=I am the child element)
<parent>
I am the parent element of mixedtype.
<child>I am the child element</child>
</parent>