diff -r 6ec71a88b68e -r 46409371a691 src/hotspot/share/runtime/thread.cpp
--- a/src/hotspot/share/runtime/thread.cpp	Tue May 21 00:52:04 2019 -0700
+++ b/src/hotspot/share/runtime/thread.cpp	Tue May 21 10:34:57 2019 +0200
@@ -1613,7 +1613,6 @@
   set_deopt_compiled_method(NULL);
   clear_must_deopt_id();
   set_monitor_chunks(NULL);
-  set_next(NULL);
   _on_thread_list = false;
   set_thread_state(_thread_new);
   _terminated = _not_terminated;
@@ -3457,7 +3456,6 @@
 // would like. We are actively migrating Threads_lock uses to other
 // mechanisms in order to reduce Threads_lock contention.
 
-JavaThread* Threads::_thread_list = NULL;
 int         Threads::_number_of_threads = 0;
 int         Threads::_number_of_non_daemon_threads = 0;
 int         Threads::_return_code = 0;
@@ -3764,7 +3762,6 @@
   }
 
   // Initialize Threads state
-  _thread_list = NULL;
   _number_of_threads = 0;
   _number_of_non_daemon_threads = 0;
 
@@ -4423,9 +4420,6 @@
 
   BarrierSet::barrier_set()->on_thread_attach(p);
 
-  p->set_next(_thread_list);
-  _thread_list = p;
-
   // Once a JavaThread is added to the Threads list, smr_delete() has
   // to be used to delete it. Otherwise we can just delete it directly.
   p->set_on_thread_list();
@@ -4463,20 +4457,6 @@
     // Maintain fast thread list
     ThreadsSMRSupport::remove_thread(p);
 
-    JavaThread* current = _thread_list;
-    JavaThread* prev    = NULL;
-
-    while (current != p) {
-      prev    = current;
-      current = current->next();
-    }
-
-    if (prev) {
-      prev->set_next(current->next());
-    } else {
-      _thread_list = p->next();
-    }
-
     _number_of_threads--;
     if (!is_daemon) {
       _number_of_non_daemon_threads--;