diff -r c80f6ecb0bb3 -r 5f9eee6b383b hotspot/test/runtime/modules/AccessCheck/UmodDiffCL_ExpUnqual.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/modules/AccessCheck/UmodDiffCL_ExpUnqual.java	Thu Mar 17 19:04:01 2016 +0000
@@ -0,0 +1,122 @@
+/*
+ * 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.  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.
+ */
+
+/*
+ * @test
+ * @summary class p1.c1 defined in an unnamed module tries to access p2.c2 defined in m2.
+ *          Access allowed, an unnamed module can read all modules and p2 in module m2
+ *          which is exported unqualifiedly.
+ * @library /testlibrary /test/lib
+ * @compile myloaders/MyDiffClassLoader.java
+ * @compile p2/c2.java
+ * @compile p1/c1.java
+ * @build UmodDiffCL_ExpUnqual
+ * @run main/othervm -Xbootclasspath/a:. UmodDiffCL_ExpUnqual
+ */
+
+import static jdk.test.lib.Asserts.*;
+
+import java.lang.reflect.Layer;
+import java.lang.module.Configuration;
+import java.lang.module.ModuleDescriptor;
+import java.lang.module.ModuleFinder;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+import myloaders.MyDiffClassLoader;
+
+//
+// ClassLoader1 --> defines m1 --> no packages
+// ClassLoader2 --> defines m2 --> packages p2
+//
+// m1 can read m2
+// package p2 in m2 is exported unqualifiedly.
+//
+// class p1.c1 defined in an unnamed module tries to access p2.c2 defined in m2
+// Access allowed, an unnamed module can read all modules and p2 in module
+//              m2 which is exported unqualifiedly.
+//
+public class UmodDiffCL_ExpUnqual {
+
+    // Create a Layer over the boot layer.
+    // Define modules within this layer to test access between
+    // publically defined classes within packages of those modules.
+    public void createLayerOnBoot() throws Throwable {
+
+        // Define module:     m1
+        // Can read:          java.base, m2
+        // Packages:          none
+        // Packages exported: none
+        ModuleDescriptor descriptor_m1 =
+                new ModuleDescriptor.Builder("m1")
+                        .requires("java.base")
+                        .requires("m2")
+                        .build();
+
+        // Define module:     m2
+        // Can read:          java.base
+        // Packages:          p2
+        // Packages exported: none
+        ModuleDescriptor descriptor_m2 =
+                new ModuleDescriptor.Builder("m2")
+                        .requires("java.base")
+                        .exports("p2")
+                        .build();
+
+        // Set up a ModuleFinder containing all modules for this layer.
+        ModuleFinder finder = ModuleLibrary.of(descriptor_m1, descriptor_m2);
+
+        // Resolves "m1"
+        Configuration cf = Layer.boot()
+                .configuration()
+                .resolveRequires(finder, ModuleFinder.empty(), Set.of("m1"));
+
+        // map each module to differing class loaders for this test
+        Map<String, ClassLoader> map = new HashMap<>();
+        map.put("m1", MyDiffClassLoader.loader1);
+        map.put("m2", MyDiffClassLoader.loader2);
+
+        // Create Layer that contains m1 & m2
+        Layer layer = Layer.boot().defineModules(cf, map::get);
+
+        assertTrue(layer.findLoader("m1") == MyDiffClassLoader.loader1);
+        assertTrue(layer.findLoader("m2") == MyDiffClassLoader.loader2);
+        assertTrue(layer.findLoader("java.base") == null);
+
+        // NOTE: module m1 does not define a package named p1.
+        //       p1 will be loaded in an unnamed module.
+        Class p1_c1_class = MyDiffClassLoader.loader1.loadClass("p1.c1");
+        try {
+            p1_c1_class.newInstance();
+        } catch (IllegalAccessError e) {
+            throw new RuntimeException("Test Failed, p1.c1 defined in unnamed module can access p2.c2 in module m2");
+        }
+    }
+
+    public static void main(String args[]) throws Throwable {
+      UmodDiffCL_ExpUnqual test = new UmodDiffCL_ExpUnqual();
+      test.createLayerOnBoot();
+    }
+}