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implementing XML Namespace Resolution in Spring Framework - Unexpected Element Matching

👀 Views: 0 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-12
JAXB Spring XML Java

I'm working on a personal project and I'm deploying to production and I'm experimenting with I'm currently working on a Spring application where I need to deserialize an XML response from a REST API using JAXB... The XML contains multiple namespaces, and I'm working with issues with element matching during the unmarshalling process. Here's a snippet of the XML I'm dealing with: ```xml <root xmlns:ns1="http://example.com/ns1" xmlns:ns2="http://example.com/ns2"> <ns1:elementA>Value A</ns1:elementA> <ns2:elementB>Value B</ns2:elementB> </root> ``` In my JAXB configuration, I have the following bindings defined: ```java @XmlRootElement(name = "root") @XmlAccessorType(XmlAccessType.FIELD) public class Root { @XmlElement(name = "elementA", namespace = "http://example.com/ns1") private String elementA; @XmlElement(name = "elementB", namespace = "http://example.com/ns2") private String elementB; // Getters and setters } ``` When I try to unmarshal the XML string using the following code: ```java JAXBContext context = JAXBContext.newInstance(Root.class); Unmarshaller unmarshaller = context.createUnmarshaller(); Root root = (Root) unmarshaller.unmarshal(new StringReader(xmlString)); ``` I receive the following behavior: ``` Exception in thread "main" javax.xml.bind.UnmarshalException: unexpected element (uri:"http://example.com/ns1", local:"elementA") ``` I have verified that the namespaces in my XML and the JAXB annotations match, but the behavior continues. I've also tried adding `@XmlSchema` annotations in a separate file to define the namespaces globally but to no avail. Additionally, I've confirmed that I'm using JAXB 2.3.1 and Spring 5.3.8. Any insights on what might be causing the namespace resolution scenario or how I can troubleshoot this further? Thanks in advance! This is my first time working with Java 3.11. Thanks for taking the time to read this! This is part of a larger microservice I'm building.