diff a/src/hotspot/share/gc/g1/g1CollectionSet.cpp b/src/hotspot/share/gc/g1/g1CollectionSet.cpp
--- a/src/hotspot/share/gc/g1/g1CollectionSet.cpp
+++ b/src/hotspot/share/gc/g1/g1CollectionSet.cpp
@@ -70,13 +70,11 @@
   _inc_predicted_elapsed_time_ms(0.0),
   _inc_predicted_elapsed_time_ms_diff(0.0) {
 }
 
 G1CollectionSet::~G1CollectionSet() {
-  if (_collection_set_regions != NULL) {
-    FREE_C_HEAP_ARRAY(uint, _collection_set_regions);
-  }
+  FREE_C_HEAP_ARRAY(uint, _collection_set_regions);
   free_optional_regions();
   clear_candidates();
 }
 
 void G1CollectionSet::init_region_lengths(uint eden_cset_region_length,