--- /dev/null	2020-03-09 16:06:09.000000000 -0700
+++ new/src/java.base/share/classes/jdk/internal/loader/NativeLibrary.java	2020-03-09 16:06:09.000000000 -0700
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2020, 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.loader;
+
+/**
+ * NativeLibrary represents a loaded native library instance.
+ */
+public interface NativeLibrary {
+    String name();
+
+    /*
+     * Finds the address of the entry of the given name.  Returns 0
+     * if not found.
+     */
+    long findEntry(String name);
+
+    /*
+     * Finds the address of the entry of the given name.
+     *
+     * @throws NoSuchMethodException if the named entry is not found.
+     */
+    default long lookup(String name) throws NoSuchMethodException {
+        long addr = findEntry(name);
+        if (0 == addr) {
+            throw new NoSuchMethodException("Cannot find symbol " + name + " in library " + name());
+        }
+        return addr;
+    }
+}