--- a/src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.cpp	Thu Mar 21 14:18:34 2019 -0700
+++ b/src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.cpp	Thu Mar 21 22:37:36 2019 +0100
@@ -48,7 +48,7 @@
 #include "oops/oop.inline.hpp"
 #include "runtime/handles.inline.hpp"
 
-template<UpdateRefsMode UPDATE_REFS, StringDedupMode STRING_DEDUP>
+template<UpdateRefsMode UPDATE_REFS>
 class ShenandoahInitMarkRootsClosure : public OopClosure {
 private:
   ShenandoahObjToScanQueue* _queue;
@@ -57,7 +57,7 @@
 
   template <class T>
   inline void do_oop_work(T* p) {
-    ShenandoahConcurrentMark::mark_through_ref<T, UPDATE_REFS, STRING_DEDUP>(p, _heap, _queue, _mark_context);
+    ShenandoahConcurrentMark::mark_through_ref<T, UPDATE_REFS, NO_DEDUP>(p, _heap, _queue, _mark_context);
   }
 
 public:
@@ -99,13 +99,8 @@
 
     ShenandoahObjToScanQueue* q = queues->queue(worker_id);
 
-    if (ShenandoahStringDedup::is_enabled()) {
-      ShenandoahInitMarkRootsClosure<UPDATE_REFS, ENQUEUE_DEDUP> mark_cl(q);
-      do_work(heap, &mark_cl, worker_id);
-    } else {
-      ShenandoahInitMarkRootsClosure<UPDATE_REFS, NO_DEDUP> mark_cl(q);
-      do_work(heap, &mark_cl, worker_id);
-    }
+    ShenandoahInitMarkRootsClosure<UPDATE_REFS> mark_cl(q);
+    do_work(heap, &mark_cl, worker_id);
   }
 
 private: