--- old/src/hotspot/share/memory/metaspace.cpp	2019-11-21 11:53:15.747025216 +0100
+++ new/src/hotspot/share/memory/metaspace.cpp	2019-11-21 11:53:15.487020969 +0100
@@ -394,7 +394,7 @@
 }
 
 static void inc_stat_atomically(volatile size_t* pstat, size_t words) {
-  Atomic::add(words, pstat);
+  Atomic::add(pstat, words);
 }
 
 static void dec_stat_atomically(volatile size_t* pstat, size_t words) {