2.5.2 How the finalization interface works

2.5.2.4 After finalization

Once an object in the finalization queue has been finalized, it typically becomes available for reclamation by the garbage collector. Because it has been taken off the garbage collector's finalization register, it will not be queued up for finalization again.

Note: There are exceptions to this rule; see Section 2.5.2.6 on page 16 and Section 2.5.2.7 on page 17.