--- old/src/hotspot/share/interpreter/interpreterRuntime.cpp	2019-08-22 18:54:01.775143448 +0000
+++ new/src/hotspot/share/interpreter/interpreterRuntime.cpp	2019-08-22 18:54:00.910123598 +0000
@@ -771,12 +771,7 @@
   Handle h_obj(thread, elem->obj());
   assert(Universe::heap()->is_in_reserved_or_null(h_obj()),
          "must be NULL or an object");
-  if (UseBiasedLocking) {
-    // Retry fast entry if bias is revoked to avoid unnecessary inflation
-    ObjectSynchronizer::fast_enter(h_obj, elem->lock(), true, CHECK);
-  } else {
-    ObjectSynchronizer::slow_enter(h_obj, elem->lock(), CHECK);
-  }
+  ObjectSynchronizer::enter(h_obj, elem->lock(), CHECK);
   assert(Universe::heap()->is_in_reserved_or_null(elem->obj()),
          "must be NULL or an object");
 #ifdef ASSERT
@@ -796,7 +791,7 @@
   if (elem == NULL || h_obj()->is_unlocked()) {
     THROW(vmSymbols::java_lang_IllegalMonitorStateException());
   }
-  ObjectSynchronizer::slow_exit(h_obj(), elem->lock(), thread);
+  ObjectSynchronizer::exit(h_obj(), elem->lock(), thread);
   // Free entry. This must be done here, since a pending exception might be installed on
   // exit. If it is not cleared, the exception handling code will try to unlock the monitor again.
   elem->set_obj(NULL);