248                 StrongRootsScope*      strong_roots_scope);

   248                 StrongRootsScope*      strong_roots_scope);

   249 

   249 

   250   HeapWord* young_old_boundary() { return _young_old_boundary; }

   250   HeapWord* young_old_boundary() { return _young_old_boundary; }

   251 

   251 

   252   void work(uint worker_id);

   252   void work(uint worker_id);

   257 };

   253 };

   258 

   254 

   259 class KeepAliveClosure: public DefNewGeneration::KeepAliveClosure {

   255 class KeepAliveClosure: public DefNewGeneration::KeepAliveClosure {

   260  protected:

   256  protected:

   261   template <class T> void do_oop_work(T* p);

   257   template <class T> void do_oop_work(T* p);