src/share/vm/gc/g1/g1StringDedup.cpp

@@ -151,13 +151,11 @@
                                       G1GCPhaseTimes* phase_times) {
   assert(is_enabled(), "String deduplication not enabled");
 
   G1StringDedupUnlinkOrOopsDoTask task(is_alive, keep_alive, allow_resize_and_rehash, phase_times);
   G1CollectedHeap* g1h = G1CollectedHeap::heap();
-  g1h->set_par_threads();
   g1h->workers()->run_task(&task);
-  g1h->set_par_threads(0);
 }
 
 void G1StringDedup::threads_do(ThreadClosure* tc) {
   assert(is_enabled(), "String deduplication not enabled");
   tc->do_thread(G1StringDedupThread::thread());