diff -r 5e8f9713e343 -r 3636bab5e81e src/hotspot/share/runtime/biasedLocking.cpp
--- a/src/hotspot/share/runtime/biasedLocking.cpp	Fri Nov 29 11:26:25 2019 +0100
+++ b/src/hotspot/share/runtime/biasedLocking.cpp	Fri Nov 29 12:09:25 2019 +0100
@@ -61,8 +61,6 @@
  public:
   VM_EnableBiasedLocking() {}
   VMOp_Type type() const          { return VMOp_EnableBiasedLocking; }
-  Mode evaluation_mode() const    { return _async_safepoint; }
-  bool is_cheap_allocated() const { return true; }
 
   void doit() {
     // Iterate the class loader data dictionaries enabling biased locking for all
@@ -82,10 +80,8 @@
   EnableBiasedLockingTask(size_t interval_time) : PeriodicTask(interval_time) {}
 
   virtual void task() {
-    // Use async VM operation to avoid blocking the Watcher thread.
-    // VM Thread will free C heap storage.
-    VM_EnableBiasedLocking *op = new VM_EnableBiasedLocking();
-    VMThread::execute(op);
+    VM_EnableBiasedLocking op;
+    VMThread::execute(&op);
 
     // Reclaim our storage and disenroll ourself
     delete this;