N.J. Stat. Ann. § 40:49-8

The person or persons filing such objections may, however, within ten days after the passage of such ordinance, 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, in the county, 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.