The following if statement in the do_heap_region function of G1PruneRegionClosure:

> if (_num_pruned > _max_pruned ||
> _cur_wasted + reclaimable > _max_wasted) {
> return true;
> }

should be >=, otherwise one too many region than intended will be added.

Impact is limited, as the pruning is an inherently inexact and conservative heuristics driven process.

Reported by Tianqi Xia (https://mail.openjdk.java.net/pipermail/hotspot-gc-dev/2022-May/039287.html)