1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   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.
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   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
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  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @summary Test if package p6 in module m2x is not exported, then class c5
  27  *          in an unnamed module can not access p6.c2 in module m2x.
  28  * @modules java.base/jdk.internal.misc
  29  * @library /test/lib
  30  * @compile myloaders/MySameClassLoader.java
  31  * @compile p6/c6.java
  32  * @compile c5.java
  33  * @run main/othervm -Xbootclasspath/a:. UmodUpkg_NotExp
  34  */
  35 
  36 import static jdk.test.lib.Asserts.*;
  37 
  38 import java.lang.module.Configuration;
  39 import java.lang.module.ModuleDescriptor;
  40 import java.lang.module.ModuleFinder;
  41 import java.util.HashMap;
  42 import java.util.Map;
  43 import java.util.Set;
  44 import myloaders.MySameClassLoader;
  45 
  46 // ClassLoader1 --> defines m1x --> no packages
  47 //                  defines m2x --> packages p6
  48 //
  49 // m1x can read m2x
  50 // package p6 in m2x is not exported
  51 //
  52 // class c5 defined in an unnamed module tries to access p6.c2 defined in m2x
  53 // Access denied since p6 is not exported.
  54 //
  55 public class UmodUpkg_NotExp {
  56 
  57     // Create a layer over the boot layer.
  58     // Define modules within this layer to test access between
  59     // publically defined classes within packages of those modules.
  60     public void createLayerOnBoot() throws Throwable {
  61 
  62         // Define module:     m1x
  63         // Can read:          java.base, m2x
  64         // Packages:          none
  65         // Packages exported: none
  66         ModuleDescriptor descriptor_m1x =
  67                 ModuleDescriptor.newModule("m1x")
  68                         .requires("java.base")
  69                         .requires("m2x")
  70                         .build();
  71 
  72         // Define module:     m2x
  73         // Can read:          java.base
  74         // Packages:          p6
  75         // Packages exported: none
  76         ModuleDescriptor descriptor_m2x =
  77                 ModuleDescriptor.newModule("m2x")
  78                         .requires("java.base")
  79                         .packages(Set.of("p6"))
  80                         .build();
  81 
  82         // Set up a ModuleFinder containing all modules for this layer.
  83         ModuleFinder finder = ModuleLibrary.of(descriptor_m1x, descriptor_m2x);
  84 
  85         // Resolves "m1x"
  86         Configuration cf = ModuleLayer.boot()
  87                 .configuration()
  88                 .resolve(finder, ModuleFinder.of(), Set.of("m1x"));
  89 
  90         // map each module to the same class loader for this test
  91         Map<String, ClassLoader> map = new HashMap<>();
  92         map.put("m1x", MySameClassLoader.loader1);
  93         map.put("m2x", MySameClassLoader.loader1);
  94 
  95         // Create layer that contains m1x and m2x
  96         ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get);
  97 
  98         assertTrue(layer.findLoader("m1x") == MySameClassLoader.loader1);
  99         assertTrue(layer.findLoader("m2x") == MySameClassLoader.loader1);
 100         assertTrue(layer.findLoader("java.base") == null);
 101 
 102         // now use the same loader to load class c5
 103         Class c5_class = MySameClassLoader.loader1.loadClass("c5");
 104         try {
 105             c5_class.newInstance();
 106             throw new RuntimeException("Failed to get IAE (p6 in m2x is not exported)");
 107         } catch (IllegalAccessError e) {
 108           System.out.println(e.getMessage());
 109           if (!e.getMessage().contains("does not export")) {
 110               throw new RuntimeException("Wrong message: " + e.getMessage());
 111           }
 112         }
 113     }
 114 
 115     public static void main(String args[]) throws Throwable {
 116       UmodUpkg_NotExp test = new UmodUpkg_NotExp();
 117       test.createLayerOnBoot();
 118     }
 119 }