A java sample about this issue in EasyMVP repository: https://github.com/6thsolution/EasyMVP/issues/28

desc.md

As described here the static field is supposed to keep the value among all SimplePresenter classes and that's the default behaviour of it. The code above prints: 0 1 2 3 4 5 6 7 8 9

If you want it to be 0 0 ... 0 you should remove the static keyword so that it doesn't get shared among all presenters.

Main.java

public class Main {

    public static void main(String[] args) {
        for (int i=0; i<10; i++) {
            SimplePresenter presenter = new SimplePresenter();
        }
    }
    
}

SimplePresenter.java

/**
 * Created by mohamadamin on 3/15/17.
 */
public class SimplePresenter {

    private static int counter = 0;
    private int count = counter++;

    public SimplePresenter() {
        System.out.println(count);
    }

}