Delighted to discover airside smoking in Terminal B (I believe other areas also exist).
BTW, Duty Free prices OK. Marlboro Gold USD 36/200 (in JER I'm paying equivalent of USD 130 on the street or c. USD 65 in DF at JER and LGW)
This one is at the far end of the terminal, past Gate 25, with a great view of the airfield too.