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JAXB @XmlValue deserializing not working with records

Open micopiira opened this issue 2 years ago • 6 comments

@XmlAttribute and @XmlElement seem to work fine with records, and @XmlValue seems to work when serializing but deserializing fails with java.lang.IllegalAccessException

public class Main {

    public record TestObject (
            @XmlValue
            String name,
            @XmlAttribute
            int age) {}

    public static void main(String[] args) throws JsonProcessingException {
        XmlMapper xmlMapper = new XmlMapper();
        JakartaXmlBindAnnotationModule module = new JakartaXmlBindAnnotationModule();
        xmlMapper.registerModule(module);
        TestObject testObject = new TestObject("foo", 12);
        String xml = xmlMapper.writeValueAsString(testObject);
        TestObject testObject1 = xmlMapper.readValue(xml, TestObject.class);
    }
}

stacktrace:

Exception in thread "main" com.fasterxml.jackson.databind.JsonMappingException: Can not set final java.lang.String field org.example.Main$TestObject.name to java.lang.String
	at com.fasterxml.jackson.databind.JsonMappingException.from(JsonMappingException.java:276)
	at com.fasterxml.jackson.databind.deser.SettableBeanProperty._throwAsIOE(SettableBeanProperty.java:627)
	at com.fasterxml.jackson.databind.deser.SettableBeanProperty._throwAsIOE(SettableBeanProperty.java:615)
	at com.fasterxml.jackson.databind.deser.SettableBeanProperty._throwAsIOE(SettableBeanProperty.java:638)
	at com.fasterxml.jackson.databind.deser.impl.FieldProperty.set(FieldProperty.java:193)
	at com.fasterxml.jackson.databind.deser.impl.PropertyValue$Regular.assign(PropertyValue.java:60)
	at com.fasterxml.jackson.databind.deser.impl.PropertyBasedCreator.build(PropertyBasedCreator.java:211)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:519)
	at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1405)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:352)
	at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:185)
	at com.fasterxml.jackson.dataformat.xml.deser.XmlTextDeserializer.deserialize(XmlTextDeserializer.java:96)
	at com.fasterxml.jackson.dataformat.xml.deser.XmlDeserializationContext.readRootValue(XmlDeserializationContext.java:91)
	at com.fasterxml.jackson.databind.ObjectMapper._readMapAndClose(ObjectMapper.java:4730)
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3677)
	at com.fasterxml.jackson.databind.ObjectMapper.readValue(ObjectMapper.java:3645)
	at org.example.Main.main(Main.java:25)
Caused by: java.lang.IllegalAccessException: Can not set final java.lang.String field org.example.Main$TestObject.name to java.lang.String
	at java.base/jdk.internal.reflect.UnsafeFieldAccessorImpl.throwFinalFieldIllegalAccessException(UnsafeFieldAccessorImpl.java:76)
	at java.base/jdk.internal.reflect.UnsafeFieldAccessorImpl.throwFinalFieldIllegalAccessException(UnsafeFieldAccessorImpl.java:80)
	at java.base/jdk.internal.reflect.UnsafeQualifiedObjectFieldAccessorImpl.set(UnsafeQualifiedObjectFieldAccessorImpl.java:79)
	at java.base/java.lang.reflect.Field.set(Field.java:799)
	at com.fasterxml.jackson.databind.deser.impl.FieldProperty.set(FieldProperty.java:190)
	... 12 more

I'm using java 17 and jackson 2.14.1

micopiira avatar Dec 01 '22 09:12 micopiira