| Returns the maximum object-inspection age, which is the number
of real-time milliseconds that have elapsed since the
least-recently-inspected heap object was last inspected by the garbage
collector.
For simple stop-the-world collectors this value is just the time
since the most recent collection. For generational collectors it is the
time since the oldest generation was most recently collected. Other
collectors are free to return a pessimistic estimate of the elapsed
time, or simply the time since the last full collection was performed.
Note that in the presence of reference objects, a given object that
is no longer strongly reachable may have to be inspected multiple times
before it can be reclaimed.
| 