--- old/src/hotspot/share/gc/shenandoah/shenandoahBarrierSetClone.inline.hpp	2020-01-24 15:21:05.436494632 +0100
+++ new/src/hotspot/share/gc/shenandoah/shenandoahBarrierSetClone.inline.hpp	2020-01-24 15:21:05.212490867 +0100
@@ -46,7 +46,7 @@
     T o = RawAccess<>::oop_load(p);
     if (!CompressedOops::is_null(o)) {
       oop obj = CompressedOops::decode_not_null(o);
-      if (_cset->is_in(obj)) {
+      if (_cset->is_in(cast_from_oop<HeapWord*>(obj))) {
         oop fwd = _bs->resolve_forwarded_not_null(obj);
         if (EVAC && obj == fwd) {
           fwd = _heap->evacuate_object(obj, _thread);