I just got done with a Java Stout as well. Overall it turned out really well but there are a few corrections I would make if I did it all over again so I'll share my $0.02.
Be careful with how you prepare or add the coffee.
My directions said to brew a strong 8 cup pot of coffee, let it cool, and dump it in when I racked to secondary.
I would not use this method again because I can taste some bitter flavors from the hot temperatures of the coffee going through the Mr. Coffee machine. In the future, I would definitely just steep the grounds for a while, strain them, and add the coffee to the beer to avoid any slight off flavor from brewing the coffee at a high temperature.
Is there another type of coffee you enjoy that isn't vacuum packed so that you can steep it? I really think steeping it would make a pleasant difference.
I would recommend adding the coffee in a secondary as opposed to bottling time. This will give the beer and coffee some solidified and valuable time to blend together.