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());
        }
        

                    buf.start = off;
                    buf.reset();
                    msg.encode_header(buf);
                    buf.enc_ndr_long(msg.alloc_hint);
                    buf.enc_ndr_short(0); /* context id */
                    buf.enc_ndr_short(msg.getOpnum());
                }

                doSendFragment(stub, off, msg.length, isDirect);

        val = ndrBuffer.dec_ndr_short();
        assertEquals(0x1234, val);
        assertEquals(4, ndrBuffer.getIndex());
    }

    @Test
    void testEncDecNdrLong() {
        ndrBuffer.enc_ndr_long(0xDEADBEEF);
        assertEquals(4, ndrBuffer.getIndex()); // Aligned to 4, then advanced by 4
        assertEquals(4, ndrBuffer.getLength());
        assertEquals((byte) 0xEF, buffer[0]); // Little-endian

                buf.start = off;
                buf.reset();
                msg.encode_header(buf);
                buf.enc_ndr_long(msg.alloc_hint);
                buf.enc_ndr_short(0); /* context id */
                buf.enc_ndr_short(msg.getOpnum());
            }

            if ((msg.flags & DCERPC_LAST_FRAG) == DCERPC_LAST_FRAG) {

    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 "";
        }

    @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();
    }