How to change Junit 4.12 method names by iteration

I have extended the FrameworkMethod class like this:

private class RepeatedFrameworkMethod extends FrameworkMethod {

    private int number;

    public RepeatedFrameworkMethod(Method method, int i) {
        super(method);
        this.number = i;
    }

    @Override
    public String getName() {
        System.out.println(number);
        return String.format("%s[%d]", super.getName(), number);
    }

}

When iterating the method, the name remains the same (i.e, number is set once to 0).

for (FrameworkMethod testMethod : testMethods) {
        Repeat repeat = testMethod.getAnnotation(Repeat.class);
        if (repeat == null) {
            children.add(testMethod);
        }
        else {
            for (int i = 0; i < repeat.times(); i++) {

                children.add(new RepeatedFrameworkMethod(testMethod.getMethod(), i));

            }
        }
    }

This is what I get in Eclipse.

Always 0. It used to work with Junit 4.11.

any Idea? Thanks.