--- old/src/hotspot/share/gc/g1/g1CollectedHeap.cpp	2019-11-26 11:12:03.539766746 +0100
+++ new/src/hotspot/share/gc/g1/g1CollectedHeap.cpp	2019-11-26 11:12:03.087764505 +0100
@@ -3716,11 +3716,11 @@
   }
 
   void add_humongous_candidates(size_t candidates) {
-    Atomic::add(candidates, &_humongous_candidates);
+    Atomic::add(&_humongous_candidates, candidates);
   }
 
   void add_humongous_total(size_t total) {
-    Atomic::add(total, &_humongous_total);
+    Atomic::add(&_humongous_total, total);
   }
 
   size_t humongous_candidates() {