67   ParGCAllocBuffer _to_space_alloc_buffer;

    67   ParGCAllocBuffer _to_space_alloc_buffer;

    68 

    68 

    69   ParScanWithoutBarrierClosure         _to_space_closure; // scan_without_gc_barrier

    69   ParScanWithoutBarrierClosure         _to_space_closure; // scan_without_gc_barrier

    70   ParScanWithBarrierClosure            _old_gen_closure; // scan_with_gc_barrier

    70   ParScanWithBarrierClosure            _old_gen_closure; // scan_with_gc_barrier

    71   ParRootScanWithoutBarrierClosure     _to_space_root_closure; // scan_root_without_gc_barrier

    71   ParRootScanWithoutBarrierClosure     _to_space_root_closure; // scan_root_without_gc_barrier

    73   // set its generation.  The first is for two-gen configs where the

    73   // set its generation.  The first is for two-gen configs where the

    74   // old gen collects the perm gen; the second is for arbitrary configs.

    74   // old gen collects the perm gen; the second is for arbitrary configs.

    75   // The second isn't used right now (it used to be used for the train, an

    75   // The second isn't used right now (it used to be used for the train, an

    76   // incremental collector) but the declaration has been left as a reminder.

    76   // incremental collector) but the declaration has been left as a reminder.

    77   ParRootScanWithBarrierTwoGensClosure _older_gen_closure;

    77   ParRootScanWithBarrierTwoGensClosure _older_gen_closure;