Подскажите, что не так?
package com.javarush.task.task17.task1721;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
/*
Транзакционность
*/
public class Solution {
public static List<String> allLines = new ArrayList<String>();
public static List<String> forRemoveLines = new ArrayList<String>();
public static void main(String[] args) throws IOException {
BufferedReader reader1 = new BufferedReader(new InputStreamReader(System.in));
String fileName1 = reader1.readLine();
BufferedReader buff1 = new BufferedReader(new FileReader(fileName1));
String line1 = buff1.readLine();
while (line1 != null) {
allLines.add(line1);
}
BufferedReader reader2 = new BufferedReader(new InputStreamReader(System.in));
String fileName2 = reader2.readLine();
BufferedReader buff2 = new BufferedReader(new FileReader(fileName2));
String line2 = buff1.readLine();
while (line2 != null) {
forRemoveLines.add(line2);
}
reader1.close();
reader2.close();
buff1.close();
buff2.close();
Solution solution = new Solution();
solution.joinData();
}
public void joinData() throws IOException {
if (allLines.containsAll(forRemoveLines)) {
allLines.removeAll(forRemoveLines);
}
else {
allLines.clear();
throw new CorruptedDataException();
}
}
}