--- a/src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.cpp	Tue Oct 22 14:05:56 2019 +0200
+++ b/src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.cpp	Tue Oct 22 11:59:42 2019 -0400
@@ -442,8 +442,6 @@
     weak_refs_work(full_gc);
   }
 
-  _heap->parallel_cleaning(full_gc);
-
   assert(task_queues()->is_empty(), "Should be empty");
   TASKQUEUE_STATS_ONLY(task_queues()->print_taskqueue_stats());
   TASKQUEUE_STATS_ONLY(task_queues()->reset_taskqueue_stats());