Не могу найти ошибку, и где тут транзакционность?
package com.javarush.task.task17.task1721;
import java.io.*;
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 CorruptedDataException {
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String fileName1 = reader.readLine();
String fileName2 = reader.readLine();
FileInputStream InputStream1 = new FileInputStream(fileName1);
FileInputStream InputStream2 = new FileInputStream(fileName1);
BufferedReader fileReader1 = new BufferedReader(new InputStreamReader(InputStream1));
BufferedReader fileReader2 = new BufferedReader(new InputStreamReader(InputStream2));
String s = fileReader1.readLine();
while (s != null){
allLines.add(s);
}
String s2 = fileReader2.readLine();
while (s2 != null){
forRemoveLines.add(s2);
}
reader.close();
InputStream1.close();
InputStream2.close();
fileReader1.close();
fileReader2.close();
Solution solution = new Solution();
solution.joinData();
} catch (IOException e) {
e.printStackTrace();
}
}
public void joinData() throws CorruptedDataException {
if (allLines.containsAll(forRemoveLines)){
allLines.removeAll(forRemoveLines);
}else {
allLines.clear();
throw new CorruptedDataException();
}
}
}