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

    29  *          Access allowed, an unnamed module can read all modules and p2 in module m2

    30  *          which is exported unqualifiedly.

    31  * @library /testlibrary /test/lib

    32  * @compile myloaders/MyDiffClassLoader.java

    33  * @compile p2/c2.java

    34  * @compile p1/c1.java

    35  * @build UmodDiffCL_ExpUnqual

    36  * @run main/othervm -Xbootclasspath/a:. UmodDiffCL_ExpUnqual

    37  */

    38 

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

    40 

    41 import java.lang.reflect.Layer;

    42 import java.lang.module.Configuration;

    43 import java.lang.module.ModuleDescriptor;

    44 import java.lang.module.ModuleFinder;

    45 import java.util.HashMap;

    46 import java.util.Map;

    47 import java.util.Set;

    48 import myloaders.MyDiffClassLoader;

    49 

    50 //

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

    52 // ClassLoader2 --> defines m2 --> packages p2

    53 //

    54 // m1 can read m2

    55 // package p2 in m2 is exported unqualifiedly.

    56 //

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

    58 // Access allowed, an unnamed module can read all modules and p2 in module

    59 //              m2 which is exported unqualifiedly.

    60 //

    61 public class UmodDiffCL_ExpUnqual {

    62 

    63     // Create a Layer over the boot layer.

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

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

    66     public void createLayerOnBoot() throws Throwable {

    67 

    68         // Define module:     m1

    69         // Can read:          java.base, m2

    70         // Packages:          none

    71         // Packages exported: none

    72         ModuleDescriptor descriptor_m1 =

    73                 new ModuleDescriptor.Builder("m1")

    74                         .requires("java.base")

    75                         .requires("m2")

    76                         .build();

    77 

    78         // Define module:     m2

    79         // Can read:          java.base

    80         // Packages:          p2

    81         // Packages exported: none

    82         ModuleDescriptor descriptor_m2 =

    83                 new ModuleDescriptor.Builder("m2")

    84                         .requires("java.base")

    85                         .exports("p2")

    86                         .build();

    87 

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

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

    90 

    91         // Resolves "m1"

    92         Configuration cf = Layer.boot()

    93                 .configuration()

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

    95 

    96         // map each module to differing class loaders for this test

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

    98         map.put("m1", MyDiffClassLoader.loader1);

    99         map.put("m2", MyDiffClassLoader.loader2);

   100 

   101         // Create Layer that contains m1 & m2

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

   103 

   104         assertTrue(layer.findLoader("m1") == MyDiffClassLoader.loader1);

   105         assertTrue(layer.findLoader("m2") == MyDiffClassLoader.loader2);

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

   107 

   108         // NOTE: module m1 does not define a package named p1.

   109         //       p1 will be loaded in an unnamed module.

   110         Class p1_c1_class = MyDiffClassLoader.loader1.loadClass("p1.c1");

   111         try {

   112             p1_c1_class.newInstance();

   113         } catch (IllegalAccessError e) {

   114             throw new RuntimeException("Test Failed, p1.c1 defined in unnamed module can access p2.c2 in module m2");

   115         }

   116     }

   117 

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

   119       UmodDiffCL_ExpUnqual test = new UmodDiffCL_ExpUnqual();

   120       test.createLayerOnBoot();

   121     }

   122 }