--- a/src/hotspot/share/classfile/javaClasses.hpp	Wed Jan 17 22:24:46 2018 -0800
+++ b/src/hotspot/share/classfile/javaClasses.hpp	Thu Jan 18 22:17:11 2018 -0500
@@ -921,6 +921,8 @@
   static inline void set_discovered(oop ref, oop value);
   static inline void set_discovered_raw(oop ref, oop value);
   static inline HeapWord* discovered_addr_raw(oop ref);
+  static inline oop queue(oop ref);
+  static inline void set_queue(oop ref, oop value);
   static bool is_referent_field(oop obj, ptrdiff_t offset);
   static inline bool is_phantom(oop ref);
 };
@@ -944,6 +946,20 @@
   static void serialize(SerializeClosure* f) NOT_CDS_RETURN;
 };
 
+// Interface to java.lang.ref.ReferenceQueue objects
+
+class java_lang_ref_ReferenceQueue: public AllStatic {
+public:
+  static int static_NULL_queue_offset;
+  static int static_ENQUEUED_queue_offset;
+
+  // Accessors
+  static oop NULL_queue();
+  static oop ENQUEUED_queue();
+
+  static void compute_offsets();
+};
+
 // Interface to java.lang.invoke.MethodHandle objects
 
 class MethodHandleEntry;