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.nio.CharBuffer; import java.util.ArrayList; import java.util.HashMap; import java.util.List; /* Отслеживаем изменения */ public class Solution { public static List<LineItem> lines = new ArrayList<LineItem>(); public static void main(String[] args) throws Exception { BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in)); String url1 = bufferedReader.readLine(); String url2 = bufferedReader.readLine(); HashMap<Integer, String> hashMap = new HashMap<Integer, String>(); //lines.add(); FileReader fileReader1 = new FileReader(url1); String line = ""; int count = 1; while (fileReader1.ready()){ int el = fileReader1.read(); if (el == 65279) continue; line = line + (char)el; if (el == 10){ hashMap.put(count, line.trim()); line = ""; count++; } } hashMap.put(count, line); FileReader fileReader2 = new FileReader(url2); line = ""; count = 1; while (fileReader2.ready()){ int el = fileReader2.read(); if (el == 65279) continue; line = line + (char)el; if (el == 10){ line = line.trim(); String value = hashMap.get(count).trim(); value.equals(line); if (value.compareTo(line) == 0) lines.add(new LineItem(Type.SAME, value)); else { if (value.length() == 0) lines.add(new LineItem(Type.ADDED, line)); else lines.add(new LineItem(Type.REMOVED, value)); } line = ""; count++; } } line = line.trim(); String value = hashMap.get(count).trim(); value.equals(line); if (value.compareTo(line) == 0) lines.add(new LineItem(Type.SAME, value)); else { if (value.length() == 0) lines.add(new LineItem(Type.ADDED, line)); else lines.add(new LineItem(Type.REMOVED, value)); } fileReader2.close(); fileReader1.close(); bufferedReader.close(); } 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; } } }