--- old/src/hotspot/share/gc/g1/g1OopClosures.inline.hpp	2018-10-25 11:37:27.874510615 +0200
+++ new/src/hotspot/share/gc/g1/g1OopClosures.inline.hpp	2018-10-25 11:37:27.449497522 +0200
@@ -87,7 +87,7 @@
       return;
     }
     handle_non_cset_obj_common(state, p, obj);
-    if (_from_is_young) {
+    if (_scanning_in_young) {
       return;
     }
     _par_scan_state->enqueue_card_if_tracked(p, obj);
@@ -180,7 +180,6 @@
       return;
     }
     handle_non_cset_obj_common(state, p, obj);
-    assert(!_from_is_young, "Should not be the case.");
     _par_scan_state->enqueue_card_if_tracked(p, obj);
   }
 }