[frenchmark]

I think that the value of the play is situation dependent as pantsonfire says, but also aside from the specifics of the situation there might be a question of what you hoped to achieve with the raise, did you want get a call or not, you siad you felt you where slight favourite, so maybe you did, if so then it was a reasonable play that got beat.
If however you wanted to just take the blinds then you then a smaller raise would have been more reasonable, and you would have been able to get out of trouble. Also though in favour of all in. There is no way you would fold jj pre flop, limping leaves you a hard decision post flop if the board has any over cards, especially out of position, especially if you feel that you may be being bullied out of pots. Having woken up to Jacks and limped or raised 2.5/3x bb, would you have folded to a reraise preflop? or would if not you are going to end up all in anyway.
If you had made 3x raise your stack is down to 12000, and got away from the hand on the flop your stack is down to 1200, your M is down to 8 increasing your relative level of desperation, in effect you are likely to end up in all in with even more marginal hands.