@XmlAttribute/@XmlValue need to reference a Java type that maps to text

Question

Hi,
I get this exception when marshalling with xjc (either 2.0.1 or 2.1.3) generated classes. The xsd looks like this:
<xs:complexType name="ExtensionType">
     <xs:simpleContent>
          <xs:extension base="xs:anySimpleType">
               <xs:attribute name="nombre" use="required">
                    <xs:simpleType>
                         <xs:restriction base="xs:string">
                              <xs:maxLength value="50"/>
                         </xs:restriction>
                    </xs:simpleType>
               </xs:attribute>
               <xs:attribute name="tipo" use="optional">
                    <xs:simpleType>
                         <xs:restriction base="xs:string">
                              <xs:minLength value="0"/>
                              <xs:maxLength value="30"/>
                         </xs:restriction>
                    </xs:simpleType>
               </xs:attribute>
               <xs:attribute name="id" use="optional">
                    <xs:simpleType>
                         <xs:restriction base="xs:string">
                              <xs:minLength value="0"/>
                         </xs:restriction>
                    </xs:simpleType>
               </xs:attribute>
          </xs:extension>
     </xs:simpleContent>
</xs:complexType>and the generated class looks like
public class ExtensionType {
    @XmlValue
    protected Object value;
    @XmlAttribute
    protected String id;
    @XmlAttribute(required = true)
    protected String nombre;
    @XmlAttribute
    protected String tipo;
}If I change value's type to String I don't get the error any more. I've tried some binding customizations, but without luck.
Any hints on how to a) customize de binding or b) modify the schema so that jaxb doesn't choke on xjc's bindings?
tks

Answer 1

I am running into the same problem. I need an @XmlValue to be an Object (xs:anyType). Here are the basic annotations:
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "argument")
public class Argument {
    @XmlAttribute(name = "type")
    protected String type;
    @XmlValue
    protected Object value;
}The desired output is as follows:
<argument type="arg1.type"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xs="http://www.w3.org/2001/XMLSchema" xsi:type="xs:string">
    test
</argument>However, I am getting the same exception: "@XmlAttribute/@XmlValue need to reference a Java type that maps to text in XML." when attempting to marshal.
Any suggestions would be appreciated.