--- a/src/share/vm/classfile/javaClasses.hpp	Thu Oct 10 13:44:59 2013 +0200
+++ b/src/share/vm/classfile/javaClasses.hpp	Thu Oct 10 14:20:04 2013 +0200
@@ -986,6 +986,32 @@
   static int form_offset_in_bytes()             { return _form_offset; }
 };
 
+// Interface to java.lang.invoke.DirectMethodHandle objects
+
+class java_lang_invoke_DirectMethodHandle: AllStatic {
+  friend class JavaClasses;
+
+ private:
+  static int _member_offset;               // the MemberName of this DMH
+
+  static void compute_offsets();
+
+ public:
+  // Accessors
+  static oop  member(oop mh);
+
+  // Testers
+  static bool is_subclass(Klass* klass) {
+    return klass->is_subclass_of(SystemDictionary::DirectMethodHandle_klass());
+  }
+  static bool is_instance(oop obj) {
+    return obj != NULL && is_subclass(obj->klass());
+  }
+
+  // Accessors for code generation:
+  static int member_offset_in_bytes()           { return _member_offset; }
+};
+
 // Interface to java.lang.invoke.LambdaForm objects
 // (These are a private interface for managing adapter code generation.)