I believe it is one of the viburnums.

I think it could be a dogwood (cornus species).

I'm thinking viburnum-dogwoods don't have teeth- my guess is, that it is an escapee . But I am not an expert.
The two viburnums escapees that i have seen in woods are,
V.sieboldii, and v.setigerum. Both have teeth, but not as
sharp as in your picture. v.sieboldii's leaves when crushed
smell like bell peppers

Couldn't see any buds to verify, but it looks most like Viburnum setigerum, tea viburnum. If you can get a shot of the whole plant, it would help.

V. setigerum has a more "leggy" habit than most other viburnums, with multiple stemmed shrub habit, and it typically has very prominent terminal buds on the its new growth.

V. setigerum is an Asian plant, not a NJ native. I don't know that it is listed as invasive, though I can imagine that you'd find stray seedlings where it has been planted often.