[BUG] Problem using @Jacksonized with @JsonPOJOBuilder

[JonCook]

Hello,

I have the following simple POJO:

@Data
@Builder(builderClassName = "EmployeeBuilder")
@Jacksonized
public class Employee {

    private int identity;
    private String firstName;
    
    @JsonPOJOBuilder(buildMethodName = "createEmployee", withPrefix = "construct")
    public static class EmployeeBuilder {

        private int idValue;
        private String nameValue;

        public EmployeeBuilder constructId(int id) {
            idValue = id;
            return this;
        }
            
        public EmployeeBuilder constructName(String name) {
            nameValue = name;
            return this;
        }

        public Employee createEmployee() {
            return new Employee(idValue, nameValue);
        }
    }
}

Everything compiles and works in Eclipse OK, however when I try to compile via Maven and JDK jdk8u345-b01 I get the following error:

Employee.java:[15,8] com.fasterxml.jackson.databind.annotation.JsonPOJOBuilder is not a repeatable annotation type

I've no idea what this even means to be honest but I'm using the latest version of Lombok 1.18.24 and Jackson 2.14.0

If I use the following, it works as well:

@Data 
@Builder(builderClassName = "EmployeeBuilder") 
@JsonDeserialize(builder = Employee.EmployeeBuilder.class) 
@AllArgsConstructor

So removing @Jacksonized seems to solve the problem?

Thanks,

[janrieke]

See StackOverflow for a more detailed answer.

In short: You are manually adding @JsonPOJOBuilder, but that's also generated by Lombok's @Jacksonized.

We could improve that by letting @Jacksonized check for an existing @JsonPOJOBuilder (as we do already for @JsonDeserialize) and print a meaningful error then.

However, low-prio IMO.

[JonCook]

Thanks for the reply @janrieke - I replied on stackoverflow

Yes agree low-prio or add something to the documentation.