src/share/vm/memory/referenceProcessor.hpp

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--- 20,35 ----
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   *
   */
  
+ #ifndef SHARE_VM_MEMORY_REFERENCEPROCESSOR_HPP
+ #define SHARE_VM_MEMORY_REFERENCEPROCESSOR_HPP
+ 
+ #include "memory/referencePolicy.hpp"
+ #include "oops/instanceRefKlass.hpp"
+ 
  // ReferenceProcessor class encapsulates the per-"collector" processing
  // of java.lang.Reference objects for GC. The interface is useful for supporting
  // a generational abstraction, in particular when there are multiple
  // generations that are being independently collected -- possibly
  // concurrently and/or incrementally.  Note, however, that the
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    DiscoveredList*     _refs_lists;
    HeapWord*           _pending_list_addr;
    oop                 _sentinel_ref;
    int                 _n_queues;
  };
+ 
+ #endif // SHARE_VM_MEMORY_REFERENCEPROCESSOR_HPP