diff --git a/src/hotspot/share/gc/g1/g1CollectionSet.cpp b/src/hotspot/share/gc/g1/g1CollectionSet.cpp
index 7329e679519..802edd70a65 100644
--- a/src/hotspot/share/gc/g1/g1CollectionSet.cpp
+++ b/src/hotspot/share/gc/g1/g1CollectionSet.cpp
@@ -182,7 +182,7 @@ void G1CollectionSet::iterate(G1HeapRegionClosure* cl) const {
 void G1CollectionSet::par_iterate(G1HeapRegionClosure* cl,
                                   G1HeapRegionClaimer* hr_claimer,
                                   uint worker_id) const {
-  iterate_part_from(cl, hr_claimer, 0, cur_length(), worker_id);
+  iterate_part_from(cl, hr_claimer, 0, regions_cur_length(), worker_id);
 }
 
 void G1CollectionSet::iterate_optional(G1HeapRegionClosure* cl) const {
@@ -197,7 +197,7 @@ void G1CollectionSet::iterate_optional(G1HeapRegionClosure* cl) const {
 void G1CollectionSet::iterate_incremental_part_from(G1HeapRegionClosure* cl,
                                                     G1HeapRegionClaimer* hr_claimer,
                                                     uint worker_id) const {
-  iterate_part_from(cl, hr_claimer, _regions_inc_part_start, regions_cur_length(), worker_id);
+  iterate_part_from(cl, hr_claimer, _regions_inc_part_start, regions_cur_increment_length(), worker_id);
 }
 
 void G1CollectionSet::iterate_part_from(G1HeapRegionClosure* cl,
diff --git a/src/hotspot/share/gc/g1/g1CollectionSet.hpp b/src/hotspot/share/gc/g1/g1CollectionSet.hpp
index df0228c4956..edf9163ae62 100644
--- a/src/hotspot/share/gc/g1/g1CollectionSet.hpp
+++ b/src/hotspot/share/gc/g1/g1CollectionSet.hpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2016, 2025, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 2026, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -283,9 +283,9 @@ public:
   void iterate_incremental_part_from(G1HeapRegionClosure* cl, G1HeapRegionClaimer* hr_claimer, uint worker_id) const;
 
   // Returns the length of the current increment in number of regions.
-  size_t regions_cur_length() const { return _regions_cur_length - _regions_inc_part_start; }
+  size_t regions_cur_increment_length() const { return _regions_cur_length - _regions_inc_part_start; }
   // Returns the length of the whole current collection set in number of regions
-  size_t cur_length() const { return _regions_cur_length; }
+  size_t regions_cur_length() const { return _regions_cur_length; }
 
   // Iterate over the entire collection set (all increments calculated so far), applying
   // the given G1HeapRegionClosure on all of the regions.
diff --git a/src/hotspot/share/gc/g1/g1YoungGCAllocationFailureInjector.cpp b/src/hotspot/share/gc/g1/g1YoungGCAllocationFailureInjector.cpp
index 2b33a85da29..36c9916ad0f 100644
--- a/src/hotspot/share/gc/g1/g1YoungGCAllocationFailureInjector.cpp
+++ b/src/hotspot/share/gc/g1/g1YoungGCAllocationFailureInjector.cpp
@@ -56,7 +56,7 @@ G1YoungGCAllocationFailureInjector::G1YoungGCAllocationFailureInjector()
 void G1YoungGCAllocationFailureInjector::select_allocation_failure_regions() {
   G1CollectedHeap* g1h = G1CollectedHeap::heap();
   _allocation_failure_regions.reinitialize(g1h->max_num_regions());
-  SelectAllocationFailureRegionClosure closure(_allocation_failure_regions, g1h->collection_set()->cur_length());
+  SelectAllocationFailureRegionClosure closure(_allocation_failure_regions, g1h->collection_set()->regions_cur_length());
   g1h->collection_set_iterate_all(&closure);
 }