--- old/src/java.base/share/native/libjava/Reflection.c	2018-05-18 03:23:51.818590683 -0400
+++ new/src/java.base/share/native/libjava/Reflection.c	2018-05-18 03:23:50.274501239 -0400
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -38,3 +38,9 @@
 {
     return JVM_GetClassAccessFlags(env, cls);
 }
+
+JNIEXPORT jboolean JNICALL
+Java_jdk_internal_reflect_Reflection_areNestMates(JNIEnv *env, jclass unused, jclass current, jclass member)
+{
+  return JVM_AreNestMates(env, current, member);
+}