The "Isle of Java" is a Joffrey's Coffee grab-and-go counter located just to the right of the Flame Tree Barbecue front ordering line and registers. This is one of the more recent "building-like" structures as opposed to the older kiosks.
We've found most of the Joffrey's locations in Disney parks to have one specialty beverage, either unique to that location or to the park. Everything else is pretty much the same... great coffee and espresso options and a small selection of baked goods.
(*) Price ranges listed are the average cost for one main entree and one soft beverage item, unless otherwise stated. There are many combinations of appetizers, deserts and drinks that will add to your final total. Many parks also use seasonal pricing systems which result in food and beverage costs increasing at peak times. Please check with the location that you are interested in for specific pricing information.