--- old/src/hotspot/share/interpreter/bytecodeInterpreter.cpp	2019-11-21 11:55:21.113137450 +0100
+++ new/src/hotspot/share/interpreter/bytecodeInterpreter.cpp	2019-11-21 11:55:20.857133122 +0100
@@ -2163,7 +2163,7 @@
               HeapWord* compare_to = *Universe::heap()->top_addr();
               HeapWord* new_top = compare_to + obj_size;
               if (new_top <= *Universe::heap()->end_addr()) {
-                if (Atomic::cmpxchg(new_top, Universe::heap()->top_addr(), compare_to) != compare_to) {
+                if (Atomic::cmpxchg(Universe::heap()->top_addr(), compare_to, new_top) != compare_to) {
                   goto retry;
                 }
                 result = (oop) compare_to;