On the table with stacks of long, probably can! Sometimes! limp jacks, but only with the idea to catch hidden nuts (and to diversify the game), but it is somehow difficult to ...
If you flop a jack and two overcards, here the danger straight, so that you can set a lot of money is lost (though if rivals are ready to leave his entire stack with top pair, then this option is not bad.). If Jack and 2 undercard, it set no pay, and if someone is going to invest money in the bank, you will surely have to make a lot of difficult decisions: his bottom set? Does he call with a draw? Or has it already caught the Street? Or maybe he did bluffing with 2 overcards? Then draw on the turn will reach all may become worse.
Cozy all you can feel when one overcard and other small undercard. Then, if your opponent catch top pair, he can pay a lot if he vmazhetsya the lower set, it can leave your entire stack.
In any case, on a table with a short stack, I would not limp at all jacks.