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();
    }

        assertEquals((byte) 0xAD, buffer[2]);
        assertEquals((byte) 0xDE, buffer[3]);

        ndrBuffer.setIndex(0);
        int val = ndrBuffer.dec_ndr_long();
        assertEquals(0xDEADBEEF, val);
        assertEquals(4, ndrBuffer.getIndex());
    }

    @Test
    void testEncDecNdrHyper() {
        ndrBuffer.enc_ndr_hyper(0x0123456789ABCDEFL);

        // Simulate info pointer (non-null)
        dstOut.enc_ndr_long(1); // Non-null pointer for info
        info.encode(dstOut); // Encode the info structure

        // Simulate totalentries pointer (non-null)
        dstOut.enc_ndr_long(1); // Non-null pointer for totalentries
        totalentries.encode(dstOut); // Encode the totalentries

        dstOut.enc_ndr_long(0); // Simulate retval

                    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);

                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) {