output all keys who's value's are equal to min and still the task failed??

package com.codegym.task.task18.task1804; import java.io.BufferedReader; import java.io.FileInputStream; import java.io.InputStreamReader; import java.util.Collections; import java.util.Map; import java.util.TreeMap; /* Rarest bytes */ public class Solution { public static void main(String[] args) throws Exception { BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)); String sAge = reader.readLine(); // String sAge="/home/r00t/test/file3"; FileInputStream inputStream = new FileInputStream(sAge); reader.close(); TreeMap<Integer,Integer> map=new TreeMap<Integer,Integer>(); boolean check = true; Integer compare = null; while (inputStream.available() > 0) //as long as there are unread bytes { int data = inputStream.read(); //Read the next byte if (map.containsKey(data)) { int value = map.get(data); map.put(data,++value); } else { map.put(data, 1); } } inputStream.close(); for(Map.Entry m:map.entrySet()){ if (check) { compare = Integer.parseInt(m.getValue().toString()); check = false; } if (compare==Integer.parseInt(m.getValue().toString())) { // Integer condition = Integer.parseInt(m.getKey().toString()); // Integer condition2 = 20; // if (condition > condition2) { System.out.print(m.getKey() + " "); // } } } } }