N.J. Stat. Ann. § 40:49-25

Within ten days after the final passage of such ordinance the persons filing the objection provided in section 40:49-24 of this Title may obtain a review of the determination of the governing body, as to the public necessity of such improvement, by a judge of the Superior Court by a notice in writing, filed with the municipal clerk. The matter may be brought on by either party on five days' notice or such notice as the judge shall direct and the determination of the judge as to the public necessity of the improvement shall be final.