--- old/src/hotspot/share/jfr/leakprofiler/chains/edgeStore.cpp	2020-01-14 13:46:52.173328517 -0800
+++ new/src/hotspot/share/jfr/leakprofiler/chains/edgeStore.cpp	2020-01-14 13:46:51.941328525 -0800
@@ -231,7 +231,7 @@
   StoredEdge* const leak_context_edge = put(edge->reference());
   oop sample_object = edge->pointee();
   assert(sample_object != NULL, "invariant");
-  assert(NULL == sample_object->mark().to_pointer(), "invariant");
+  assert(sample_object->mark().is_marked(), "invariant");
   sample_object->set_mark(markWord::from_pointer(leak_context_edge));
   return leak_context_edge;
 }