private String decodeWideStringPointer(NdrBuffer buf) throws NdrException {
        int pointer = buf.dec_ndr_long();
        if (pointer == 0) {
            return null; // NULL pointer
        }

        int maxCount = buf.dec_ndr_long();
        int offset = buf.dec_ndr_long();
        int actualCount = buf.dec_ndr_long();

        if (actualCount <= 0) {
            return "";
        }

    private String decodeWideStringPointer(NdrBuffer buf) throws NdrException {
        int pointer = buf.dec_ndr_long();
        if (pointer == 0) {
            return null; // NULL pointer
        }

        int maxCount = buf.dec_ndr_long();
        int offset = buf.dec_ndr_long();
        int actualCount = buf.dec_ndr_long();

        if (actualCount <= 0) {
            return "";
        }

        buf.enc_ndr_long(0x00000010); // data representation
        buf.enc_ndr_short(20); // length
        buf.enc_ndr_short(0); // auth length
        buf.enc_ndr_long(0); // call_id

        // Fault body
        buf.enc_ndr_long(0); // alloc_hint
        buf.enc_ndr_short(0); // context_id
        buf.enc_ndr_short(0); // cancel_count
        buf.enc_ndr_long(0xDEADBEEF); // fault status

        void testDecodeOut() throws Exception {
            // Given
            int result = 0;
            when(mockBuffer.dec_ndr_short()).thenReturn(4096, 4096, 10, result, 0);
            when(mockBuffer.dec_ndr_long()).thenReturn(12345);
            when(mockBuffer.dec_ndr_small()).thenReturn(1);
            lenient().doNothing().when(mockBuffer).advance(anyInt());
            lenient().when(mockBuffer.align(anyInt())).thenReturn(0);

        this.value = value;
    }

    @Override
    public void encode(final NdrBuffer dst) throws NdrException {
        dst.enc_ndr_long(value);
    }

    @Override
    public void decode(final NdrBuffer src) throws NdrException {
        value = src.dec_ndr_long();
    }

        this.value = value;
    }

    @Override
    public void encode(final NdrBuffer dst) throws NdrException {
        dst.enc_ndr_long(this.value);
    }

    @Override
    public void decode(final NdrBuffer src) throws NdrException {
        this.value = src.dec_ndr_long();
    }

        DCERPC_UUID_SYNTAX_NDR.encode(buf);
        buf.enc_ndr_long(2); /* syntax version */
    }

    @Override
    public void decode_out(final NdrBuffer buf) throws NdrException {
        buf.dec_ndr_short(); /* max transmit frag size */
        buf.dec_ndr_short(); /* max receive frag size */
        buf.dec_ndr_long(); /* assoc. group */
        final int n = buf.dec_ndr_short(); /* secondary addr len */

        DCERPC_UUID_SYNTAX_NDR.encode(buf);
        buf.enc_ndr_long(2); /* syntax version */
    }

    @Override
    public void decode_out(final NdrBuffer buf) throws NdrException {
        buf.dec_ndr_short(); /* max transmit frag size */
        buf.dec_ndr_short(); /* max receive frag size */
        buf.dec_ndr_long(); /* assoc. group */
        final int n = buf.dec_ndr_short(); /* secondary addr len */

            buffer.enc_ndr_long(request.getSequenceNumber());
        }
        
        @Override
        public void decode_out(NdrBuffer buffer) throws NdrException {
            response = new WitnessHeartbeatResponse();
            response.setSequenceNumber(buffer.dec_ndr_long());
            response.setReturnCode(buffer.dec_ndr_long());
        }
        

    @Override
    public void decode_out(NdrBuffer buf) throws NdrException {
        decodeWitnessParameters(buf);
        // The return code is always the last 4 bytes in MS-SWN responses
        returnCode = buf.dec_ndr_long();
    }