Why shouldn't I use immutable POJOs instead of JavaBeans?

Question

I have implemented a few Java applications now, only desktop applications so far. I prefer to use immutable objects for passing the data around in the application instead of

Answer 1

From Java 7 you can have immutable beans, the best of both worlds. Use the annotation @ConstructorProperties on your constructor.

public class Person {
    private final String name;
    private final Place birthPlace;

    @ConstructorProperties({"name", "birthPlace"})
    public Person(String name, Place birthPlace) {
        this.name = name;
        this.birthPlace = birthPlace;
    }

    public String getName() {
        return name;
    }

    public Place getBirthPlace() {
        return birthPlace;
    }
}