--- old/src/hotspot/share/jfr/leakprofiler/chains/dfsClosure.cpp	2019-08-13 12:39:48.392197198 +0200
+++ new/src/hotspot/share/jfr/leakprofiler/chains/dfsClosure.cpp	2019-08-13 12:39:48.084191855 +0200
@@ -121,7 +121,7 @@
   assert(_mark_bits->is_marked(pointee), "invariant");
 
   // is the pointee a sample object?
-  if (0 == pointee->mark().value()) {
+  if (NULL == pointee->mark().to_pointer()) {
     add_chain();
   }