Java – accessing private fields of another object in the copy constructor – is that really a problem?

In my java application, I have some such copy constructors

public MyClass(MyClass src) {
    this.field1 = src.field1;
    this.field2 = src.field2;
    this.field3 = src.field3;
...
}

Now NetBeans 6.9 warns this. I don't know what's wrong with this code?

My doubts

The use of getters may cause unnecessary side effects New objects may no longer be considered copies of the original. > If it is recommended to use getters, it will not be more consistent to use setters for new instances?

Edit: the actual warning is "accessing the private domain of another object". The only available operation provided by NetBeans is to add a @ suppresswarnings ("accessing nonpublicfieldofanotherobject")

My code is actually as trivial as the given example

Solution

I see no problem with the code In fact, I share your concerns rather than use getters

What warning did you get? Maybe it has something to do with what you didn't show us?

Update: it seems that NetBeans really complain about this This is a rather controversial warning, loading an IDE, I'll think