src/hotspot/share/runtime/biasedLocking.cpp

*** 43,53 ****
--- 43,55 ----
  
  static GrowableArray<Handle>*  _preserved_oop_stack  = NULL;
  static GrowableArray<markOop>* _preserved_mark_stack = NULL;
  
  static void enable_biased_locking(InstanceKlass* k) {
+   if (!k->is_value()) {
      k->set_prototype_header(markOopDesc::biased_locking_prototype());
+   }
  }
  
  class VM_EnableBiasedLocking: public VM_Operation {
   private:
    bool _is_cheap_allocated;