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POJAXB xsi:type subclass unmarshalling not working
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  1. POJAXB xsi:type subclass unmarshalling not working
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    copied!<p>I'm following the instructions on using xsi:type from this oft-cited blog post:</p> <p><a href="http://blog.bdoughan.com/2010/11/jaxb-and-inheritance-using-xsitype.html" rel="nofollow">http://blog.bdoughan.com/2010/11/jaxb-and-inheritance-using-xsitype.html</a></p> <p>Basically I have this:</p> <pre><code>public abstract class ContactInfo { } public class Address extends ContactInfo { private String street; public String getStreet() { return street; } public void setStreet(String street) { this.street = street; } } @XmlRootElement public class Customer { private ContactInfo contactInfo; public ContactInfo getContactInfo() { return contactInfo; } public void setContactInfo(ContactInfo contactInfo) { this.contactInfo = contactInfo; } } </code></pre> <p>And this test:</p> <pre><code>@Test public void contactTestCase() throws JAXBException, ParserConfigurationException, IOException, SAXException { Customer customer = new Customer(); Address address = new Address(); address.setStreet("1 A Street"); customer.setContactInfo(address); JAXBContext jc = JAXBContext.newInstance(Customer.class, Address.class, PhoneNumber.class); StringWriter writer = new StringWriter(); Marshaller marshaller = jc.createMarshaller(); marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true); marshaller.marshal(customer, writer); String s = writer.toString(); System.out.append(s); StringInputStream sis = new StringInputStream(s); DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance(); DocumentBuilder db = documentBuilderFactory.newDocumentBuilder(); Document doc = db.parse(sis); Unmarshaller um = jc.createUnmarshaller(); JAXBElement result = um.unmarshal(doc, Customer.class); Customer f = (Customer) result.getValue(); writer = new StringWriter(); marshaller.marshal(customer, writer); s = writer.toString(); System.out.append(s); } </code></pre> <p>And I get this result:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8" standalone="yes"?&gt; &lt;customer&gt; &lt;contactInfo xsi:type="address" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"&gt; &lt;street&gt;1 A Street&lt;/street&gt; &lt;/contactInfo&gt; &lt;/customer&gt; javax.xml.bind.UnmarshalException: Unable to create an instance of blog.inheritance.ContactInfo </code></pre> <p>I've tried the default implementation of JAXB, jaxb-impl-2.1.2 and based off this <a href="http://java.net/jira/browse/JAXB-890" rel="nofollow">bug</a>, I've tried jaxb-impl-2.2.6-b38.jar. None of it works.</p> <p>Is this not supposed to work or am I missing some setup?</p>
 

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