我正在尝试在java中进行“AES/ CCM /pkcs5padd”加密，但是我得到了一些异常，谁能帮助我如何使用CCM代码进行加密？

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import javax.crypto.spec.IvParameterSpec;

String key = "0123456789abcdef"; // 16字节的密钥
String iv = "0123456789abcdef"; // 16字节的IV
SecretKeySpec secretKeySpec = new SecretKeySpec(key.getBytes(), "AES");
IvParameterSpec ivParameterSpec = new IvParameterSpec(iv.getBytes());

Cipher cipher = Cipher.getInstance("AES/CCM/NoPadding");
cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec, ivParameterSpec);

byte[] plaintext = "Hello, World!".getBytes();
byte[] ciphertext = cipher.doFinal(plaintext);

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import javax.crypto.spec.IvParameterSpec;

public class CCMEncryptionExample {
    public static void main(String[] args) throws Exception {
        String key = "0123456789abcdef"; // 16字节的密钥
        String iv = "0123456789abcdef"; // 16字节的IV

        SecretKeySpec secretKeySpec = new SecretKeySpec(key.getBytes(), "AES");
        IvParameterSpec ivParameterSpec = new IvParameterSpec(iv.getBytes());

        Cipher cipher = Cipher.getInstance("AES/CCM/NoPadding");
        cipher.init(Cipher.ENCRYPT_MODE, secretKeySpec, ivParameterSpec);

        byte[] plaintext = "Hello, World!".getBytes();
        byte[] ciphertext = cipher.doFinal(plaintext);

        System.out.println("Ciphertext: " + new String(ciphertext));
    }
}