java.time.period计算间隔天数的问题

代码是这样的：

 LocalDate localDateStart=LocalDate.of(2018,3,1);
 LocalDate localDateEnd=LocalDate.of(2018,4,2);

 Period period=Period.between(localDateStart,localDateEnd);
 long years=period.getYears();
 long months=period.getMonths();
 long days=period.getDays();

 System.out.println("year="+years+",month="+months+",days="+days);
    //打印结果 year=0,month=1,days=1

修改开始日期到18年2月28号

        LocalDate localDateStart=LocalDate.of(2018,2,28);
        LocalDate localDateEnd=LocalDate.of(2018,4,2);

        Period period=Period.between(localDateStart,localDateEnd);
        long years=period.getYears();
        long months=period.getMonths();
        long days=period.getDays();

        System.out.println("year="+years+",month="+months+",days="+days);

        //打印结果：  year=0,month=1,days=5

这算是个bug吗？

先记录，未解决。