JAXB 4.X.X can't serialize parent class' field if same field exists on another child class

Question

We've upgraded from JAXB 3.0.2 to 4.0.5 and serializing a field on a set of objects has started failing. I rolled back versions and it seams to first appear in JAXB 4.0.0.

The java objects are generated from a WSDL. The problem is that the Parent object has a field ID and ChildB has a field Id. When I try to serialize ChildA, the parent ID field is never serialized. If I remove the Id field from the definition of ChildB, then I can serialize ID (from Parent) when serializing ChildA.

If I roll back the JAXB version to 3.0.2, it has no problem serializing ID (Parent) when Id (ChildB) is defined. Or, if I am using JAXB 4.0.5 and I delete Id from ChildB, it works fine as well.

Why does a field existing in ChildB prevent ChildA from serializing a field on their shared Parent? Is there extra annotations or config I need to apply? I would like to avoid changing the WSDL if possible.

Parent.ID serialized - either JAXB 3.0.2 or ChildB.Id deleted:

Parent.ID NOT serialized - JAXB 4.0.5 and ChildB.Id defined:



  
  
    
      
        test-name

Test Code:

pom.xml



    4.0.0

    org.example
    xml-test
    1.0-SNAPSHOT

    
        17
        17
        UTF-8

        3.0.2
        4.0.2
        1.6.19
        4.0.5 
        
        4.0.11
        3.0.4
        3.2.2
    

    
        
            org.springframework.boot
            spring-boot-dependencies
            ${spring.boot.version}
            pom
            import
        

        
            jakarta.xml.soap
            jakarta.xml.soap-api
            ${jakarta.version}
        
        
            jakarta.xml.bind
            jakarta.xml.bind-api
            ${jakarta.xml.bind-api.version}
        


    javax.xml.ws
    jaxws-api
    2.3.1
    provided


    javax.jws
    javax.jws-api
    1.1
    provided


        
            org.glassfish.jaxb
            jaxb-runtime
            ${jaxb.version}
        
        
            com.sun.xml.messaging.saaj
            saaj-impl
            ${saaj-impl.version}
        
        
            com.sun.xml.bind
            jaxb-impl
            ${jaxb.version}
        
        
            org.springframework.ws
            spring-ws-core
            ${spring-ws-security.version}
        
        
            org.springframework.ws
            spring-ws-security
            ${spring-ws-security.version}
        
        
            org.apache.ws.security
            wss4j
            ${wss4j.version}
        
        
            org.springframework.ws
            spring-ws-test
            test
            4.0.10
        
        
            org.springframework
            spring-test
            6.1.3
            test
        
        
            org.mockito
            mockito-inline
            5.2.0
            test
        
        
            org.junit.jupiter
            junit-jupiter-engine
            5.10.1
        
        
            org.junit.jupiter
            junit-jupiter-api
            5.10.1
        
        
            org.junit.platform
            junit-platform-commons
            1.10.1
        
        
            org.springframework.boot
            spring-boot-test
            compile
            ${spring.boot.version}
        
    
            org.springframework.boot
            spring-boot-starter-test
            ${spring.boot.version}
            test
        
    

    
        
            
                org.jvnet.jaxb
                jaxb-maven-plugin
                4.0.6
                
                    
                        
                            generate
                        
                    
                
                
                    
                        org.glassfish.jaxb
                        jaxb-runtime
                        ${jaxb.version}
                    
                
                
                    org.example
                    src/main/resources
                    
                        *.wsdl

src/main/resources/test.wsdl


  
    
      
        
          
        
      
      
        
          
            
              
            
          
        
      
      
        
          
          
        
      
      
        
          
            
          
        
      
      
        
          
            
              
            
          
        
      
      
        
          
            
          
        
      
      
        
          
            
              
            
          
        
      
    
  

  
    
  
  
    
  

  
    
      Update objects
      
      
    
  
  
    
    
    
      
      
        
      
      
        
      
    
  
  
  
    test API

src/test/java/org.example/XmlTest.java:

package org.example;

import com.sun.xml.messaging.saaj.soap.ver1_1.SOAPMessageFactory1_1Impl;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.junit.jupiter.MockitoExtension;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.context.TestConfiguration;
import org.springframework.oxm.jaxb.Jaxb2Marshaller;
import org.springframework.test.context.junit.jupiter.SpringExtension;
import org.springframework.ws.WebServiceMessage;
import org.springframework.ws.context.DefaultMessageContext;
import org.springframework.ws.soap.saaj.SaajSoapMessageFactory;
import org.springframework.ws.support.MarshallingUtils;

import org.example.XmlTest.TestSoapConfiguration;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

import static org.springframework.ws.test.client.RequestMatchers.soapEnvelope;
import static org.springframework.ws.test.client.ResponseCreators.withSoapEnvelope;

@SpringBootTest(
        classes = {
                TestApplication.class,
                TestSoapConfiguration.class,
        },
        webEnvironment = SpringBootTest.WebEnvironment.MOCK)
@ExtendWith(SpringExtension.class)
@ExtendWith(MockitoExtension.class)
public class XmlTest {

    @Test
    public void test() throws IOException {

        Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
        // this package must match the package in the  specified in pom.xml
        marshaller.setContextPath("org.example");

        ChildA ca = new ChildA();
        ca.setName("test-name");
        ca.setID(1234);

        UpdateRequest req = new UpdateRequest();
        req.getObjects().add(ca);

        DefaultMessageContext ctx = new DefaultMessageContext(new SaajSoapMessageFactory(new SOAPMessageFactory1_1Impl()));
        WebServiceMessage msg = ctx.getRequest();
        MarshallingUtils.marshal(marshaller, req, msg);
        ByteArrayOutputStream out = new ByteArrayOutputStream();;
        msg.writeTo(out);
        String str = out.toString(StandardCharsets.UTF_8);
        System.out.println(str);
    }

    @TestConfiguration
    public static class TestSoapConfiguration {
    }

src/test/java/org.example/TestApplication.java:

package org.example;

import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.context.annotation.ComponentScan;

@ComponentScan
@EnableConfigurationProperties
public class TestApplication {
    public TestApplication() {}

}

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