Java を使用して構成ファイル内のパスワードを安全に暗号化するにはどうすればよいですか?

import java.security.*;
import javax.crypto.*;
import javax.crypto.spec.*;

public class PasswordEncryption {

    public static void main(String[] args) {
        String password = "mySecretPassword";
        String salt = "someUniqueSaltValue";
        int iterationCount = 40000;
        int keyLength = 128;

        // Create a secret key
        SecretKeySpec secretKey = createSecretKey(password.toCharArray(), salt, iterationCount, keyLength);

        // Encrypt the password
        String encryptedPassword = encrypt(password, secretKey);

        // Decrypt the password
        String decryptedPassword = decrypt(encryptedPassword, secretKey);

        System.out.println("Original password: " + password);
        System.out.println("Encrypted password: " + encryptedPassword);
        System.out.println("Decrypted password: " + decryptedPassword);
    }

    private static SecretKeySpec createSecretKey(char[] password, String salt, int iterationCount, int keyLength) {
        try {
            SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA512");
            PBEKeySpec keySpec = new PBEKeySpec(password, salt.getBytes("UTF-8"), iterationCount, keyLength);
            return new SecretKeySpec(keyFactory.generateSecret(keySpec).getEncoded(), "AES");
        } catch (NoSuchAlgorithmException | InvalidKeySpecException | UnsupportedEncodingException e) {
            throw new RuntimeException(e);
        }
    }

    private static String encrypt(String password, SecretKeySpec secretKey) {
        try {
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
            cipher.init(Cipher.ENCRYPT_MODE, secretKey);
            return Base64.getEncoder().encodeToString(cipher.doFinal(password.getBytes("UTF-8")));
        } catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException | BadPaddingException | IllegalBlockSizeException | UnsupportedEncodingException e) {
            throw new RuntimeException(e);
        }
    }

    private static String decrypt(String encryptedPassword, SecretKeySpec secretKey) {
        try {
            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
            cipher.init(Cipher.DECRYPT_MODE, secretKey);
            return new String(cipher.doFinal(Base64.getDecoder().decode(encryptedPassword)));
        } catch (NoSuchAlgorithmException | NoSuchPaddingException | InvalidKeyException | InvalidAlgorithmParameterException | BadPaddingException | IllegalBlockSizeException e) {
            throw new RuntimeException(e);
        }
    }
}