dstIndex += parameterCount;
        }

        if( dataCount > 0 ) {
            p = pad1;
            while( p-- > 0 ) {
                dst[dstIndex++] = (byte)0x00;       // Pad1
            }
            System.arraycopy( txn_buf, bufDataOffset, dst, dstIndex, dataCount );
            bufDataOffset += dataCount;
            dstIndex += dataCount;
        }

        return dstIndex - start;
    }

        }

        if ( this.dataCount > 0 ) {
            System.arraycopy(this.txn_buf, this.bufDataOffset, dst, this.headerStart + this.dataOffset, this.dataCount);
            this.bufDataOffset += this.dataCount;
            end = Math.max(end, this.headerStart + this.dataOffset + this.dataCount);
        }

        return end - start;
    }


    @Override