Problems with Builder pattern with XML

[cowtowncoder]

(note: moved from FasterXML/jackson-module-jaxb-annotations#65 filed by @shahmalav )

Below is my POJO using builder pattern for Address.

@JsonDeserialize(builder = Address.AddressBuilder.class)
public final class Address {

    private final String address1;
    private final String city;
    private final String stateProvince;
    private final String postalCode;
    private final Country country;
    private final String county;

    private Address(AddressBuilder addressbuilder) {
        this.address1 = addressbuilder.address1;
        this.city = addressbuilder.city;
        this.stateProvince = addressbuilder.stateProvince;
        this.postalCode = addressbuilder.postalCode;
        this.country = addressbuilder.country;
        this.county = addressbuilder.county;
    }

    public String getAddress1() {
        return address1;
    }
    public String getCity() {
        return city;
    }

    public String getStateProvince() {
        return stateProvince;
    }

    public String getPostalCode() {
        return postalCode;
    }

    public Country getCountry() {
        return country;
    }

    public String getCounty() {
        return county;
    }

    @JsonPOJOBuilder(withPrefix = "set")
    public static class AddressBuilder {
     
        @XmlElement(name = "Address1")
        private final String address1;

        @XmlElement(name = "City")
        private final String city;

        @XmlElement(name = "StateProvince")
        private final String stateProvince;

        @XmlElement(name = "PostalCode")
        private final String postalCode;

        @XmlElement(name = "Country")
        private final Country country;

        @XmlElement(name = "County")
        private String county;
        
        @JsonCreator
        public AddressBuilder(@JsonProperty("address1") String address1, @JsonProperty("city") String city, @JsonProperty("stateProvince") String stateProvince,
                @JsonProperty("postalCode") String postalCode, @JsonProperty("country") Country country) {
            this.address1 = address1;
            this.city = city;
            this.stateProvince = stateProvince;
            this.postalCode = postalCode;
            this.country = country;
        }

        public AddressBuilder setCounty(String county) {
            this.county = county;
            return this;
        }

        public Address build() {
            return new Address(this);
        }
    }
}

I can serialize and deserialize above class using JSON but when it comes to XML, it throws an exception.

Following is the stack trace:

com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "Address1" (class com.wsgc.loyalty.service.model.Address$AddressBuilder), not marked as ignorable (8 known properties: "stateProvince", "country", "postalCode", "county", "city", "address1"])

 at [Source: java.io.StringReader@351d0846; line: 10, column: 11] (through reference chain: x.y.z.model.Address$AddressBuilder["Address1"])

Here is the XML representation of Address:

<Address>
    <Address1>111 Foo Bar</Address1>
    <City>San Francisco</City>
    <Country>USA</Country>
    <County>San Francisco</County>
    <StateProvince>CA</StateProvince>
    <PostalCode>94132</PostalCode>
</Address>

This model may not be the best example of builder-pattern.

[cowtowncoder]

One quick note: annotations for constructor parameters should refer to capitalized names, to match.
Otherwise names may not match with fields (unless jackson-module-parameter-names is registered and argument names are compiled in bytecode); and more importantly, even if they match, give conflicting name -- @JsonProperty always establish explicit, non-overridable name.
So you would end up with two names (lower-case and capitalized) that are separate.

Not sure if that explains what you are seeing, I will try to reproduce locally

[cowtowncoder]

Can not reproduce: this actually passes for me, presumably by setting fields directly (even tho they are final, reflection can set their values).

One possibility here is that maybe original code simply forgot to register JAXB annotation introspector? If so, @XmlElement annotations would be ignored.

So at this point I can not reproduce the problem: closing, may be reopened with full self-con