--- old/src/share/vm/gc/shenandoah/shenandoahStringDedup.cpp	2017-10-05 21:08:06.967157349 +0200
+++ new/src/share/vm/gc/shenandoah/shenandoahStringDedup.cpp	2017-10-05 21:08:06.861157090 +0200
@@ -49,7 +49,7 @@
 
   bool do_object_b(oop obj) {
     assert(!oopDesc::is_null(obj), "null");
-    return _heap->is_marked_complete(obj);
+    return _heap->is_marked(obj);
   }
 };