src/hotspot/share/opto/locknode.cpp

@@ -186,10 +186,12 @@
  //=============================================================================
  //------------------------------do_monitor_enter-------------------------------
  void Parse::do_monitor_enter() {
    kill_dead_locals();
  
+   C->push_monitor();
+ 
    // Null check; get casted pointer.
    Node* obj = null_check(peek());
    // Check for locking null object
    if (stopped()) return;