JAXB error "doesnt contain ObjectFactory.class or jaxb.index": java

JAXB error "doesnt contain ObjectFactory.class or jaxb.index"

Hi all,

I've got javax.xml.bind.JAXBException: "jaxb.Foo" doesnt contain ObjectFactory.class or jaxb.index

I am trying to do an unmarshall with JaxB, I have the following:

Any idea?

class Foo {
  @XmlElement
  String a;
  @XmlElement(required=true)
  String b;
  @XmlElement
  String c;
}
 
-------------------------------------------------------
myJaxb.java
-------------------------------------------------------
 
    JAXBContext jc = JAXBContext.newInstance( "jaxb.Foo" );
      
          Unmarshaller u = jc.createUnmarshaller();
      
          Foo fooObj = (Foo)u.unmarshal(
              new FileInputStream( "foo.xml" ) ); 
 
---------------------------------------
foo.xml
----------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<Foo>
         <a>1</a>
         <b>2</b>
         <c>3</c>
</Foo>

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If I'm not mistaken the JAXBContext.newInstance method that takes a String is expecting a package name. I would use the one that takes an array of Class objects and pass in Foo.class. Alos if you're using the unmarshal method that just takes one argument you need to add the @XmlRootElement annotation to Foo. Oh, and by default JAXB will accept <foo> in the xml, not <Foo>.

@XmlRootElement 
class Foo {
  @XmlElement
  String a;
  @XmlElement(required=true)
  String b;
  @XmlElement
  String c;
}
 
-------------------------------------------------------
myJaxb.java
-------------------------------------------------------
 
    JAXBContext jc = JAXBContext.newInstance(new Class[] {jaxb.Foo.class});
      
          Unmarshaller u = jc.createUnmarshaller();
      
          Foo fooObj = (Foo)u.unmarshal(
              new FileInputStream( "foo.xml" ) ); 
 
---------------------------------------
foo.xml
----------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<foo>
         <a>1</a>
         <b>2</b>
         <c>3</c>
</foo>

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JAXB error "doesnt contain ObjectFactory.class or jaxb.index"

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