* @param buffer the buffer containing the message data
     * @param bufferIndex the starting offset in the buffer
     * @return the number of bytes read
     * @throws SMBProtocolDecodingException if the data cannot be decoded
     */
    protected abstract int readBytesWireFormat(byte[] buffer, int bufferIndex) throws SMBProtocolDecodingException;

    @Override
    public int hashCode() {
        return this.mid;
    }

  private static final Function<String, String> DECODE_FUNCTION =
      new Function<String, String>() {
        @Override
        public String apply(String input) {
          return new String(BaseEncoding.base64().decode(input), UTF_8);
        }
      };

  private static final EntryTransformer<String, String, String> DECODE_ENTRY_TRANSFORMER =
      new EntryTransformer<String, String, String>() {
        @Override

                }
                /* negotiation complete, remove the challenge object */
                ssn.removeAttribute("NtlmHttpChal");
            } else {
                final String auth = new String(Base64.decode(msg.substring(6)), "US-ASCII");
                int index = auth.indexOf(':');
                String user = index != -1 ? auth.substring(0, index) : auth;

                cci = Math.max(cci, createContextStart + nameOffset + nameLength);

                final CreateContextResponse cc = createContext(nameBytes);
                if (cc != null) {
                    cc.decode(buffer, createContextStart + dataOffset, dataLength);
                    contexts.add(cc);
                }

                cci = Math.max(cci, createContextStart + dataOffset + dataLength);

import jcifs.util.Encdec;

@ExtendWith(MockitoExtension.class)
class NtlmUtilTest {

    @Mock
    CIFSContext cifsContext;

    @Mock
    Configuration configuration;

    // Helper: decode hex string to bytes
    private static byte[] hex(String s) {
        String clean = s.replaceAll("[^0-9A-Fa-f]", "");
        int len = clean.length();
        byte[] out = new byte[len / 2];

                    final List<String> list = new ArrayList<>();
                    final String permissions = stream(entity.getPermissions()).get(stream -> stream.map(s -> permissionHelper.decode(s))
                            .filter(StringUtil::isNotBlank)
                            .distinct()
                            .collect(Collectors.joining(",")));

                msgBuf = new NdrBuffer(receiveMoreFragments(msg, inB), 0);
            } else {
                msgBuf = new NdrBuffer(inB, 0);
            }
            msg.decode(msgBuf);
        } finally {
            this.transportContext.getBufferCache().releaseBuffer(inB);
            this.transportContext.getBufferCache().releaseBuffer(out);
        }

            this.async = false;
            this.nextResponse = null;
        }

        // CommonServerMessageBlock interface methods
        @Override
        public int decode(byte[] buffer, int bufferIndex) throws SMBProtocolDecodingException {
            // Mock implementation
            return 0;
        }

        @Override
        public int encode(byte[] dst, int dstIndex) {

        length = dstIndex - start;

        if (digest != null) {
            digest.sign(dst, headerStart, length, this, response);
        }

        return length;
    }

    int decode(final byte[] buffer, int bufferIndex) {
        final int start = headerStart = bufferIndex;

        bufferIndex += readHeaderWireFormat(buffer, bufferIndex);

        wordCount = buffer[bufferIndex];

     * commands are batched together we can recursivly call
     * readAndXWireFormat without reading the non-existent header.
     */

    @Override
    public int decode(final byte[] buffer, int bufferIndex) throws SMBProtocolDecodingException {
        final int start = this.headerStart = bufferIndex;

        bufferIndex += readHeaderWireFormat(buffer, bufferIndex);