I assume if you have 19 hands on him then ditto he has 19 hands on you. Has he seen you fold to a 3bet after cbetting a flop in this time? Your table image over these 19 hands is important for me, because if you've made two squeezes say in this time and cbet every time you raise, he might just think you're an aggro maniac and be value betting his jacks against whatever junk you have. At 2nl I shove this spot every time because it's A9 K9 98s 97s T9s TT JJ QQ 77 88 and sometimes even KK/AA enough times to be making a ton of money, but I don't know about this level. For sure we need more info, but we haven't got it, so I probably shove and make notes when he shows.

If we've been tight for the last 19 hands, then this is very probably a fold. I'm only shoving this spot if I can be reasonably confident there's plenty of hands we beat in his range that he can be raising this flop with, and if we've been tight for the last 19 hands, I can't see him doing this with JJ, but we don't know this until we showdown.