--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/jdk/internal/access/JavaLangRefAccess.java	Tue Nov 06 10:01:16 2018 -0800
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2014, 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
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.internal.access;
+
+public interface JavaLangRefAccess {
+
+    /**
+     * Wait for progress in {@link java.lang.ref.Reference}
+     * processing.  If there aren't any pending {@link
+     * java.lang.ref.Reference}s, return immediately.
+     *
+     * @return {@code true} if there were any pending
+     * {@link java.lang.ref.Reference}s, {@code false} otherwise.
+     */
+    boolean waitForReferenceProcessing() throws InterruptedException;
+
+    /**
+     * Runs the finalization methods of any objects pending finalization.
+     *
+     * Invoked by Runtime.runFinalization()
+     */
+    void runFinalization();
+}