Eliminate Duplicate Code function does not appear to work.

A bit new to intellij here so forgive me if it is a supid question.

anyway I was trying out the duplicate code feature and intellij did indeed find duplicate code, however the button to "Eliminate duplicate code" is grayed out in all instances.

2 examples that seem simple enough.

#1   I have the same method in 2 classes


private Date createDate(int year, int month, int date) {
        GregorianCalendar calendar = new GregorianCalendar();
        calendar.clear();
        calendar.set(Calendar.YEAR, year);
        calendar.set(Calendar.MONTH, month-1);
        calendar.set(Calendar.DAY_OF_MONTH, date);
        return calendar.getTime();
    }


I would expect that it would offer to do 1 of two things.   combine it to 1 class or extract the mothod itself into a helper class.  Although since it is grayed out I can do nothing.
And to make things worse if I manually extract the mothod to a class it doesn't go and change the other instance.

#2   Code duplication withing 1 method

        session.enroll(janeDoe);
        assertEquals(session.getNumberOfStudents(), 1);
        assertEquals(1, session.getNumberOfStudents());
        assertEquals(janeDoe, session.get(0));
        session.enroll(joeBlow);
        assertEquals(session.getNumberOfStudents(), 2);
        assertEquals(2, session.getNumberOfStudents());
        assertEquals(joeBlow, session.get(1));


it correctly identified I did the same thing twice but once again the eliminate duplicates button was grayed out.

Is this a bug or....   I have yet to see an instance where the button is not grayed out.

intellij 11.1.2

Thanks,
Mike