Подскажите, в чем ошибка?
package com.javarush.task.task18.task1804;
import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/*
Самые редкие байты
*/
public class Solution {
public static void main(String[] args) throws Exception {
List<Integer> listOfBytes = new ArrayList<>();
List<Integer> listOfFreq = new ArrayList<>();
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
FileInputStream file = new FileInputStream(reader.readLine());
int data;
int count;
while (file.available() > 0) {
data = file.read();
listOfBytes.add(data);
}
for (Integer runner : listOfBytes) {
count = Collections.frequency(listOfBytes, runner);
listOfFreq.add(count);
}
System.out.print(listOfBytes.get(Collections.min(listOfFreq)) + " ");
file.close();
reader.close();
}
}