diff a/src/hotspot/share/gc/shared/cardTableRS.cpp b/src/hotspot/share/gc/shared/cardTableRS.cpp
--- a/src/hotspot/share/gc/shared/cardTableRS.cpp
+++ b/src/hotspot/share/gc/shared/cardTableRS.cpp
@@ -623,19 +623,14 @@
   }
 }
 
 CardTableRS::~CardTableRS() {
   FREE_C_HEAP_ARRAY(CardValue, _last_cur_val_in_gen);
-  _last_cur_val_in_gen = NULL;
   FREE_C_HEAP_ARRAY(CardArr, _lowest_non_clean);
-  _lowest_non_clean = NULL;
   FREE_C_HEAP_ARRAY(size_t, _lowest_non_clean_chunk_size);
-  _lowest_non_clean_chunk_size = NULL;
   FREE_C_HEAP_ARRAY(uintptr_t, _lowest_non_clean_base_chunk_index);
-  _lowest_non_clean_base_chunk_index = NULL;
   FREE_C_HEAP_ARRAY(int, _last_LNC_resizing_collection);
-  _last_LNC_resizing_collection = NULL;
 }
 
 void CardTableRS::initialize() {
   CardTable::initialize();
   _lowest_non_clean =