CODEWITHSUNDEEP
javaxmlbindingjaxbunmarshalling
Edito
Edito

Reputation: 3727

JAXB UnmarshallException unexpected element but "Expected elements are (none)"

I try make a very 'abstract' method to convert any type of Object to an XML-String and vise versa using JAXB (javax.xml.bind.*). I get a very strange error which I don't know the meaning of.

javax.xml.bind.UnmarshalException: unexpected element (uri:"", local:"Incident"). Expected elements are (none)

I have searched for numerous solutions on google and stackoverflow, yet their solution don't seem t help. I'm facing a dead end here.

My converter method

public Object convertXmlToObject(String string, Class c) throws ConversionException {
        try {
            JAXBContext jaxbContext = JAXBContext.newInstance(c.getClass());
            Unmarshaller jaxbUnmarshaller = jaxbContext.createUnmarshaller();
            InputStream stream = new ByteArrayInputStream(string.getBytes(StandardCharsets.UTF_8));
            Object converted = jaxbUnmarshaller.unmarshal(stream);
            return converted;
        } catch (JAXBException e) {
            e.printStackTrace();
            throw new ConversionException("Could not convert the message to an Object", e);
        }
    }

where I call the method

public void generateIncidentReport(Incident incident) throws RepositoryException, ConversionException { 
    ConversionTool conversionTool = new Converter();
    String xmlMessage = conversionTool.convertObjectToXml(incident);
    //...
}

My Incident class(which has al the needed annotations)

@XmlRootElement(name = "Incident")
@XmlAccessorType(XmlAccessType.FIELD)
public class Incident {
    @XmlElement(name = "shipId")
    private int shipID;
    @XmlElement(name = "incidentType")
    private String type;
    @XmlElement(name = "action")
    private String action;
    @XmlElement(name = "centraleID")
    private String centraleID;
    @XmlElement(name = "Ship")
    private Ship ship;

    public Incident() {
    }
    //getters and setters
}

and last the XML String 

<Incident><incidentType>Medisch noodgeval</incidentType><shipId>1234567</shipId></Incident>

Upvotes: 0

Views: 4603

Answers (1)

wero
wero

Reputation: 32980

You write

JAXBContext jaxbContext = JAXBContext.newInstance(c.getClass());

with c already being a class, therefore creating a context for java.lang.Class. What you need is

JAXBContext jaxbContext = JAXBContext.newInstance(c);

Upvotes: 1

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