--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/tools/jlink/plugins/SystemModuleDescriptors/src/m3/p3/Main.java	Thu Dec 01 08:57:53 2016 +0000
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2016, 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.
+ *
+ * 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 p3;
+
+import p4.Foo;
+import java.lang.module.ModuleDescriptor;
+import java.lang.reflect.Field;
+import java.lang.reflect.Module;
+
+import static java.lang.module.ModuleDescriptor.Exports.Modifier.*;
+
+/**
+ * Test if m4 is an open module and p4 is package that m3 can access
+ */
+public class Main {
+    public static void main(String... args) throws Exception {
+        Module m4 = Foo.class.getModule();
+        if (!m4.isOpen("p4")) {
+            throw new RuntimeException("m3 can't access p4");
+        }
+
+        // Test if it can access a private field
+        Foo foo = Foo.create("foo");
+
+        Field field = Foo.class.getDeclaredField("name");
+        field.setAccessible(true);
+        String name = (String) field.get(foo);
+        if (!name.equals("foo")) {
+            throw new RuntimeException("unexpected Foo::name value = " + name);
+        }
+
+        checkOpenModule();
+    }
+
+    // check the module descriptor of the open module m4
+    static void checkOpenModule() {
+        ModuleDescriptor md = Foo.class.getModule().getDescriptor();
+        System.out.println(md);
+
+        if (!md.isOpen()) {
+            throw new RuntimeException("m4 is a open module");
+        }
+
+        if (md.packages().size() != 1 || !md.packages().contains("p4")) {
+            throw new RuntimeException("unexpected m4 packages: " + md.packages());
+        }
+
+        if (!md.opens().isEmpty()) {
+            throw new RuntimeException("unexpected m4 opens: " + md.opens());
+        }
+    }
+
+}