1 /*

     2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 /*

    27  * @test

    28  * @summary Test if package p2 in module m2 is not exported, then class p1.c1

    29  *          in an unnamed module can not access p2.c2 in module m2.

    30  * @library /testlibrary /test/lib

    31  * @compile myloaders/MySameClassLoader.java

    32  * @compile p2/c2.java

    33  * @compile p1/c1.java

    34  * @build Umod_PkgNotExp

    35  * @run main/othervm -Xbootclasspath/a:. Umod_PkgNotExp

    36  */

    37 

    38 import static jdk.test.lib.Asserts.*;

    39 

    40 import java.lang.reflect.Layer;

    41 import java.lang.module.Configuration;

    42 import java.lang.module.ModuleDescriptor;

    43 import java.lang.module.ModuleFinder;

    44 import java.util.HashMap;

    45 import java.util.Map;

    46 import java.util.Set;

    47 import myloaders.MySameClassLoader;

    48 

    49 // ClassLoader1 --> defines m1 --> no packages

    50 //                  defines m2 --> packages p2

    51 //

    52 // m1 can read m2

    53 // package p2 in m2 is not exported

    54 //

    55 // class p1.c1 defined in an unnamed module tries to access p2.c2 defined in m2

    56 // Access denied since p2 is not exported.

    57 //

    58 public class Umod_PkgNotExp {

    59 

    60     // Create a Layer over the boot layer.

    61     // Define modules within this layer to test access between

    62     // publically defined classes within packages of those modules.

    63     public void createLayerOnBoot() throws Throwable {

    64 

    65         // Define module:     m1

    66         // Can read:          java.base, m2

    67         // Packages:          none

    68         // Packages exported: none

    69         ModuleDescriptor descriptor_m1 =

    70                 new ModuleDescriptor.Builder("m1")

    71                         .requires("java.base")

    72                         .requires("m2")

    73                         .build();

    74 

    75         // Define module:     m2

    76         // Can read:          java.base

    77         // Packages:          p2

    78         // Packages exported: none

    79         ModuleDescriptor descriptor_m2 =

    80                 new ModuleDescriptor.Builder("m2")

    81                         .requires("java.base")

    82                         .conceals("p2")

    83                         .build();

    84 

    85         // Set up a ModuleFinder containing all modules for this layer.

    86         ModuleFinder finder = ModuleLibrary.of(descriptor_m1, descriptor_m2);

    87 

    88         // Resolves "m1"

    89         Configuration cf = Layer.boot()

    90                 .configuration()

    91                 .resolveRequires(finder, ModuleFinder.empty(), Set.of("m1"));

    92 

    93         // map each module to the same class loader for this test

    94         Map<String, ClassLoader> map = new HashMap<>();

    95         map.put("m1", MySameClassLoader.loader1);

    96         map.put("m2", MySameClassLoader.loader1);

    97 

    98         // Create Layer that contains m1 and m2

    99         Layer layer = Layer.boot().defineModules(cf, map::get);

   100 

   101         assertTrue(layer.findLoader("m1") == MySameClassLoader.loader1);

   102         assertTrue(layer.findLoader("m2") == MySameClassLoader.loader1);

   103         assertTrue(layer.findLoader("java.base") == null);

   104 

   105         // now use the same loader to load class p1.c1

   106         Class p1_c1_class = MySameClassLoader.loader1.loadClass("p1.c1");

   107         try {

   108             p1_c1_class.newInstance();

   109             throw new RuntimeException("Failed to get IAE (p2 in m2 is not exported)");

   110         } catch (IllegalAccessError e) {

   111           System.out.println(e.getMessage());

   112           if (!e.getMessage().contains("does not export")) {

   113               throw new RuntimeException("Wrong message: " + e.getMessage());

   114           }

   115         }

   116     }

   117 

   118     public static void main(String args[]) throws Throwable {

   119       Umod_PkgNotExp test = new Umod_PkgNotExp();

   120       test.createLayerOnBoot();

   121     }

   122 }