You can probably wrap it up in bubble wrap and put in your checked luggage and be just fine. The official policy is that you cannot bring liquor on board so if it is confiscated then you will be without it until they return it at the end of the cruise.
My suggestion is to A: Pre-order an in cabin bar set up through the Bon Voyage department. It will be more expensive than buying it and schlepping it onboard but a heck of a lot easier.
B: The last time I sailed HAL you could order a bottle from Room Service. I believe this is still true. More recent cruisers can correct me if I'm wrong.
Have an enjoyable cruise,