How to get class which invokes static method?

This is my code:

class A {

    public static void doIt() {
        //Class currentClass = new Object() { }.getClass().getEnclosingClass();
        //Class currentClass = MethodHandles.lookup().lookupClass();
        String currentClass = Thread.currentThread().getStackTrace()[1].getClassName();
        System.out.println("CALLING CLASS:" + currentClass);
    }
}

class B extends A { }

public class NewMain {

    public static void main(String[] args) {
        A.doIt();
        B.doIt();
    }
}

As you see doIt method can be called by A and B classes. In doIt I want to know what class was used to call method (A or B). Is it possible? Three solutions I tried didn't work - it always says A class.