ByteBuffer buffer;

    ByteBufferHasher(int expectedInputSize) {
      this.buffer = ByteBuffer.allocate(expectedInputSize).order(ByteOrder.LITTLE_ENDIAN);
    }

    /**
     * Resizes the buffer if necessary. Guaranteed to leave `buffer` in Write Mode ready for new
     * data.
     */
    private void ensureCapacity(int needed) {
      if (buffer.remaining() >= needed) {
        return;
      }

        md4.update(Strings.getUNIBytes(password));
        return md4.digest();
    }

    /**
     * Generates the NT password hash for the given password.
     * This version accepts char[] for better security.
     *
     * @param password the password to hash as char array
     * @return nt password hash
     */
    public static byte[] getNTHash(final char[] password) {
        if (password == null) {

        try {
            return channel.read(buffer);
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    /**
     * Reads the contents of the file channel into a byte buffer.
     *
     * @param channel
     *            The file channel. Must not be {@literal null}.
     * @param buffer

        // Should read nothing (returns 0)
        assertEquals(0, read);
    }

    @Test
    void testReadDataWireFormat() {
        trans2QueryPathInfo = new Trans2QueryPathInformation(config, TEST_FILENAME, TEST_INFO_LEVEL);

        byte[] buffer = new byte[256];
        int read = trans2QueryPathInfo.readDataWireFormat(buffer, 0, buffer.length);

        byte[] buffer = new byte[256];
        // Fill with non-zero values first
        for (int i = 0; i < buffer.length; i++) {
            buffer[i] = (byte) 0xFF;
        }

        // When
        request.writeBytesWireFormat(buffer, 10);

        // Then - verify reserved field is zero
        assertEquals(0, SMBUtil.readInt2(buffer, 12));
    }

    @Test

        byte[] buffer = new byte[4096];

        // When
        req.encode(buffer, 0);

        // Then
        byte[] pathBytes = longPath.getBytes(StandardCharsets.UTF_16LE);
        assertEquals(pathBytes.length, SMBUtil.readInt2(buffer, Smb2Constants.SMB2_HEADER_LENGTH + 6));
    }

    @Test
    @DisplayName("Should throw exception when buffer too small for path")

        request.setCloseFlags(testFlags);

        byte[] buffer = new byte[256];
        int written = request.writeBytesWireFormat(buffer, 0);

        assertEquals(24, written);
        assertEquals(24, SMBUtil.readInt2(buffer, 0));
        assertEquals(testFlags, SMBUtil.readInt2(buffer, 2));
    }

    @Test

        StringBuilder buffer = new StringBuilder(128);

        buffer.append((groupId != null && !groupId.isEmpty()) ? groupId : "[unknown-group-id]");
        buffer.append(':');
        buffer.append((artifactId != null && !artifactId.isEmpty()) ? artifactId : "[unknown-artifact-id]");
        buffer.append(':');

        byte[] buffer = new byte[8];
        // numEntries = 2
        writeInt2(2, buffer, 0);
        // isEndOfSearch = false
        buffer[2] = 0x00;
        buffer[3] = 0x00;
        // eaErrorOffset = 3
        writeInt2(3, buffer, 4);
        // lastNameOffset = 4
        writeInt2(4, buffer, 6);

        int bytesRead = response.readParametersWireFormat(buffer, 0, buffer.length);

        void testWriteBytesDoesNotOverflow() {
            byte[] buffer = new byte[100];
            // Fill buffer with known values
            for (int i = 0; i < buffer.length; i++) {
                buffer[i] = (byte) 0xFF;
            }

            int startIndex = 50;
            echoRequest.writeBytesWireFormat(buffer, startIndex);

            // Check bytes before written area are unchanged