N.J. Stat. Ann. § 9:17-42

5. Notwithstanding any other law concerning public hearings and records, any action or proceeding held under this act shall be held in closed court without admittance of any person other than those necessary to the action or proceeding. All papers and records and any information pertaining to an action or proceeding held under this act which may reveal the identity of any party in an action, other than the final judgment or the birth certificate, whether part of the permanent record of the court or of a file with the State registrar of vital statistics or elsewhere, are confidential and are subject to inspection only upon consent of the court and all parties to the action who are still living, or in exceptional cases only upon an order of the court for compelling reason clearly and convincingly shown.