Unexpected Namespace Handling in XML Parsing with JAXB in Java 11
I'm working with an scenario with XML parsing using JAXB in Java 11, specifically related to dealing with namespaces. My XML looks like this: ```xml <root xmlns:ns="http://example.com/ns"> <ns:item id="1">Item 1</ns:item> <ns:item id="2">Item 2</ns:item> </root> ``` I am trying to unmarshal this XML into a corresponding Java object, but I seem to be getting a `javax.xml.bind.UnmarshalException`. My Java class is defined as follows: ```java @XmlRootElement(name = "root") public class Root { @XmlElement(name = "item", namespace = "http://example.com/ns") private List<Item> items; // Getters and setters } @XmlAccessorType(XmlAccessType.FIELD) public class Item { @XmlAttribute(name = "id") private String id; @XmlValue private String value; // Getters and setters } ``` When I try to unmarshal the XML using the following code: ```java JAXBContext jaxbContext = JAXBContext.newInstance(Root.class); Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); Root root = (Root) unmarshaller.unmarshal(new File("items.xml")); ``` I receive the following behavior message: ``` javax.xml.bind.UnmarshalException: unexpected element (uri:"", local:"item") ``` I've double-checked that the namespace in my Java class matches the namespace in the XML, but I suspect it might be something related to how JAXB is handling the namespace. I've also tried adding `@XmlAccessorType(XmlAccessType.FIELD)` to my `Root` class, but that doesn't seem to resolve the scenario. Has anyone dealt with similar namespace issues in JAXB? What am I missing here, and how can I properly unmarshal this XML without running into this behavior? Am I missing something obvious? I'm developing on CentOS with Java. Is there a better approach?