It depends on your jungle. Baby jungles are nippy (most baby snakes besides BP's are actually!). However, when my yearling bites he still doesn't break skin nor does it hurt at all. After about the year mark, they should begin to grow out of it, assuming you're following through with regular handling. But yeah, the "snappiness" is mostly just in younger snakes. That's just the average, your individual jungle could go either way though. Maybe he's forever friendly or forever nippy! Mine is actually a lot less nippy than most yearlings I've seen, but he'll still have a go at me from time to time.
Jungles are worthy snakes to have, in my opinion. As babies they're in the "oh no everything wants to eat me" phase so they are defensive. However, they're very active and make great display snakes as they don't spend all their time hiding and will come out to nap right in the open. They're also semi-arboreal so you'll see them make use of everything you have in their enclosures. Of course they're also gorgeous....
Is the spotted your first snake?