Break BigInteger?

BigIntegerBreak.java

import java.math.BigInteger;
import java.util.Random;

public class BigIntegerBreak {

    static BigInteger breakIt(BigInteger original) {
        byte[] originalBytes = original.toByteArray();
        byte[] newBytes = new byte[originalBytes.length + 1024];
        System.arraycopy(originalBytes, 0, newBytes, 1024, originalBytes.length);

        Thread thread = new Thread(() -> {
            while (!Thread.interrupted()) {
                newBytes[0] ^= (byte)1;
            }
        });
        thread.start();

        while (true) {
            BigInteger s = new BigInteger(newBytes);
            if (s.toString().startsWith("00000")) {
                thread.interrupt();
                return s;
            }
        }
    }

    public static void main(String[] args) {
        BigInteger bigInteger = new BigInteger(65, new Random());

        BigInteger broken = breakIt(bigInteger);
        System.out.println(broken);
        System.out.println(broken.equals(bigInteger)); // prints false
        System.out.println(broken.subtract(bigInteger)); // prints 0
    }
}

Breaking java.lang.String
https://twitter.com/WouterCoekaerts/status/1678797190284685313