### Question:
EncryptionUtils { public static String decrypt(String value) { try { if (nonNull(value)) { Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding"); cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(Arrays.copyOf(T_KEY.getBytes(StandardCharsets.UTF_8), 16), "AES")); return new String(cipher.doFinal(Base64.getDecoder().decode(value)), StandardCharsets.UTF_8); } } catch (GeneralSecurityException e) { LOG.error("An error occurred while decrypting a string", e); } return null; } private  EncryptionUtils(); static String encrypt(String value); static String decrypt(String value); static final String T_KEY; }### Answer:
@Test public void testDecrypt() { assertEquals(TEST, EncryptionUtils.decrypt(ENC)); }