Что валидатору не нравится в реализации метода joinData?
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 IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
String fileName1 = reader.readLine();
String fileName2 = reader.readLine();
reader.close();
BufferedReader br1 = new BufferedReader(new FileReader(fileName1));
String s;
while ((s=br1.readLine()) != null) {
allLines.add(s);
}
br1.close();
BufferedReader br2 = new BufferedReader(new FileReader(fileName2));
while ((s=br2.readLine()) != null) {
forRemoveLines.add(s);
}
br2.close();
Solution solution = new Solution();
solution.joinData();
}
public void joinData() throws CorruptedDataException {
if(allLines.containsAll(forRemoveLines)) {
allLines.removeAll(forRemoveLines);
} else allLines.clear();
throw new CorruptedDataException();
}
}