N.J. Stat. § 2A:14-31
Thirty years' actual possession of any real estate, uninterruptedly continued by occupancy, descent, conveyance or otherwise, wherever such possession commenced or is founded upon a proprietary right duly laid thereon, and recorded in the office of the surveyor general of the division in which the location was made, or in the office of the secretary of state, pursuant to law, or wherever such possession was obtained by a fair bona fide purchase of such real estate from any person in possession thereof and supposed to have a legal right and title thereto, or from the agent of such person, shall be a good and sufficient bar to all prior locations, rights, titles, conveyances, or claims whatever, not followed by actual possession as aforesaid, and shall vest an absolute right and title in the actual possessor and occupier of all such real estate.
N.J.S. § 2A:14-31