Подскажите пожалуйста где ошибка
package com.javarush.task.task19.task1916;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
/*
Отслеживаем изменения
*/
public class Solution {
public static List<LineItem> lines = new ArrayList<LineItem>();
public static void main(String[] args) throws IOException{
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in)) ;
String fileName1 = reader.readLine();
String fileName2 = reader.readLine();
reader.close();
BufferedReader bufferedReader1 = new BufferedReader(new FileReader(fileName1));
BufferedReader bufferedReader2 = new BufferedReader(new FileReader(fileName2));
ArrayList<String> list1 = new ArrayList<String>();
ArrayList<String> list2 = new ArrayList<String>();
while(bufferedReader1.ready()){
list1.add(bufferedReader1.readLine());
}
while(bufferedReader2.ready()){
list2.add(bufferedReader2.readLine());
}
bufferedReader1.close();
bufferedReader2.close();
int count = (list1.size() > list2.size())?list1.size():list2.size();
int y = 0;
for(int i = 0;i < count;i++){
if(list1.size() < list2.size() && y == list2.size()-1){new LineItem(Type.ADDED, list2.get(y));}
else if(list1.size() > list2.size() && i == list1.size()-1){new LineItem(Type.REMOVED, list1.get(i));}
else{
if(list1.get(i).equals(list2.get(y))){new LineItem(Type.SAME, list1.get(i)); y++;}
else{
if(list1.get(i+1).equals(list2.get(y))){new LineItem(Type.REMOVED, list1.get(i));}
else{new LineItem(Type.ADDED, list2.get(y));i--;y++;}
}
}
}
}
public static enum Type {
ADDED, //добавлена новая строка
REMOVED, //удалена строка
SAME //без изменений
}
public static class LineItem {
public Type type;
public String line;
public LineItem(Type type, String line) {
this.type = type;
this.line = line;
}
}
}