String[] prefix = {"f", "g"};
      String[] suffix = {"h", "i"};

      String[] all = new String[2 + elements.length + 2];
      arraycopy(prefix, 0, all, 0, 2);
      arraycopy(elements, 0, all, 2, elements.length);
      arraycopy(suffix, 0, all, 2 + elements.length, 2);

      return ImmutableList.copyOf(all).subList(2, elements.length + 2);
    }
  }

        if (nonce.length == 12) {
            // For CCM cipher, pad nonce to 16 bytes with zeros
            System.arraycopy(nonce, 0, this.nonce, 0, 12);
            // Last 4 bytes remain zero-initialized
        } else if (nonce.length == 16) {
            // For GCM cipher, use full 16-byte nonce
            System.arraycopy(nonce, 0, this.nonce, 0, 16);
        } else {

      String[] prefix = {"f", "g"};
      String[] suffix = {"h", "i"};

      String[] all = new String[2 + elements.length + 2];
      arraycopy(prefix, 0, all, 0, 2);
      arraycopy(elements, 0, all, 2, elements.length);
      arraycopy(suffix, 0, all, 2 + elements.length, 2);

      return ImmutableList.copyOf(all).subList(2, elements.length + 2);
    }
  }

        String fileName = "test.txt";
        byte[] fileNameBytes = fileName.getBytes("UnicodeLittleUnmarked");
        SMBUtil.writeInt4(fileNameBytes.length, buffer, notifyOffset + 8); // FileNameLength
        System.arraycopy(fileNameBytes, 0, buffer, notifyOffset + 12, fileNameBytes.length);

        // When
        int bytesRead = response.readBytesWireFormat(buffer, offset);

        // Then
        assertTrue(bytesRead > 0);

        Encdec.enc_uint32le(0x00000000, temp, 4); // Reserved
        Encdec.enc_uint64le(nanos1601, temp, 8);
        System.arraycopy(clientChallenge, 0, temp, 16, 8);
        Encdec.enc_uint32le(0x00000000, temp, 24); // Unknown
        if (avPairs != null) {
            System.arraycopy(avPairs, 0, temp, 28, avPairsLength);
        }
        Encdec.enc_uint32le(0x00000000, temp, 28 + avPairsLength); // mystery bytes!

  public static <T extends @Nullable Object> T[] concat(
      T[] first, T[] second, Class<@NonNull T> type) {
    T[] result = newArray(type, first.length + second.length);
    arraycopy(first, 0, result, 0, first.length);
    arraycopy(second, 0, result, first.length, second.length);
    return result;
  }

  /**
   * Returns a new array that prepends {@code element} to {@code array}.
   *

                // Combine ciphertext and auth tag for decryption
                final byte[] input = new byte[ciphertext.length + authTag.length];
                System.arraycopy(ciphertext, 0, input, 0, ciphertext.length);
                System.arraycopy(authTag, 0, input, ciphertext.length, authTag.length);

                plaintext = cipher.doFinal(input);
            } else {
                // Use AES-CCM with Bouncy Castle

  public static <T extends @Nullable Object> T[] concat(
      T[] first, T[] second, Class<@NonNull T> type) {
    T[] result = newArray(type, first.length + second.length);
    arraycopy(first, 0, result, 0, first.length);
    arraycopy(second, 0, result, first.length, second.length);
    return result;
  }

  /**
   * Returns a new array that prepends {@code element} to {@code array}.
   *

        if (defaultWords == null) {
            updateDefaultBadwords();
        }
        final String[] concat = new String[defaultWords.length + badWords.length];
        System.arraycopy(badWords, 0, concat, 0, badWords.length);
        System.arraycopy(defaultWords, 0, concat, badWords.length, defaultWords.length);
        return concat;
    }

    /**
     * Add a bad word.
     * @param badWord Bad word
     */

            // Combine IV and ciphertext
            byte[] result = new byte[GCM_IV_SIZE + ciphertext.length];
            System.arraycopy(iv, 0, result, 0, GCM_IV_SIZE);
            System.arraycopy(ciphertext, 0, result, GCM_IV_SIZE, ciphertext.length);

            return result;

        } finally {
            // Securely wipe plaintext bytes - guaranteed by try-finally