Georgia looked as if it has plenty of work to do before facing No. 1 Indiana in 10 days.
The Bulldogs will play Youngstown State and Southern Mississippi next week before facing the Hoosiers in New York.
Georgia scored its last field goal with 6:19 remaining and hit just 24 of 38 free throw attempts.
The Bulldogs struggled against the Dolphins’ full-court pressure and were sluggish on defense as Jacksonville shot 61.3 percent from the field in the second half.
The teams combined for 44 turnovers.
Keith McDougald finished with 13 points, Glenn Powell scored 11 and Russell Powell had 10 for Jacksonville.