List<LoanRepaymentSchedule> repay = loanService
                .getLoanRepaymentScheduleById(groupLoan.getLoanId());

        Map<Integer, List<LoanRepaymentSchedule>> map = Groups.groupBy(
                repay, new Pluck<Integer, LoanRepaymentSchedule>(
                        LoanRepaymentSchedule.class, "memberCount"));
        System.out.println ("map.keySet().size() "+map.keySet().iterator());

        for (Integer key : map.keySet()) {
            List<LoanRepaymentSchedule> pro =  map.get(key);
            System.out.println("Element-******* "+pro.size());
            System.out.println("Element-******* "+pro.get(0));

        }