Section 59:2-1 - Immunity of public entity generallya. Except as otherwise provided by this act, a public entity is not liable for an injury, whether such injury arises out of an act or omission of the public entity or a public employee or any other person.b. Any liability of a public entity established by this act is subject to any immunity of the public entity and is subject to any defenses that would be available to the public entity if it were a private person.