N.J. Stat. Ann. § 3B:22-23

The period of 1 year fixed in N.J.S. 3B:22-22, shall not be deemed to be extended by any directions in a will that just debts be paid. Any charge upon real property created by any directions in a will that just debts be paid shall not attach to the real property beyond the period of 1 year fixed in that section, unless the will contains express language to the effect that the debts shall remain a lien upon the real property for a longer period.