src/hotspot/share/runtime/safepoint.cpp

@@ -579,11 +579,11 @@
     _subtasks(SubTasksDone(SafepointSynchronize::SAFEPOINT_CLEANUP_NUM_TASKS)),
     _counters(counters) {}
 
   void work(uint worker_id) {
     // All threads deflate monitors and mark nmethods (if necessary).
-    Threads::parallel_threads_do(true, &_cleanup_threads_cl);
+    Threads::possibly_parallel_threads_do(true, &_cleanup_threads_cl);
 
     if (!_subtasks.is_task_claimed(SafepointSynchronize::SAFEPOINT_CLEANUP_DEFLATE_MONITORS)) {
       const char* name = "deflating idle monitors";
       EventSafepointCleanupTask event;
       TraceTime timer(name, TRACETIME_LOG(Info, safepoint, cleanup));