Invocation of a method within its class is considered as invocation of a stub method.

[LABSARI]

public class T{
    private ArrayList data = new ArrayList();

    public boolean isEmpty() {
        ArrayList list = this.getData();
        return list.isEmpty();
    }

    private ArrayList getData() {
        return data;
    }
}

Given that class. In the generated model, the invocation of getData() in isEmpty() is considered as a call to a stub method getData().
The method getData() invoked in isEmpty() should be the one defined in the class, right ?
OS : MacOS
How I built the model with VerveineJ:

./verveinej.sh -o jexp.json -format json ../jexp/

The directory jexp has only one file: T.java