how to Call super constructor in Lombok

Question

I have a class

@Value
@NonFinal
public class A {
    int x;
    int y;
}

I have another class B

@Value
public class B extends A {
    int z;
}

lombok is throwing error saying it cant find A() constructor, explicitly call it what i want lombok to do is to give annotation to class b such that it generates the following code:

public class B extends A {
    int z;
    public B( int x, int y, int z) {
        super( x , y );
        this.z = z;
    }
}

Do we have an annotation to do that in Lombok?

Answer 1

This is not possible in Lombok. Although it would be a really nice feature, it requires resolution to find the constructors of the super class. The super class is only known by name the moment Lombok gets invoked. Using the import statements and the classpath to find the actual class is not trivial. And during compilation you cannot just use reflection to get a list of constructors.

It is not entirely impossible but the results using resolution in val and @ExtensionMethod have taught us that is it hard and error-prone.

Disclosure: I am a Lombok developer.