src/share/vm/memory/referenceProcessor.hpp

@@ -20,10 +20,16 @@
  * 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

@@ -540,5 +546,7 @@
   DiscoveredList*     _refs_lists;
   HeapWord*           _pending_list_addr;
   oop                 _sentinel_ref;
   int                 _n_queues;
 };
+
+#endif // SHARE_VM_MEMORY_REFERENCEPROCESSOR_HPP