UmodUpkgDiffCL_NotExp.java revision 12290:8953c0318163 
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 c5 in an unnamed module can read module m2, but package p6 in module m2 is not exported.
29 *          Access denied since even though unnamed module can read all modules, p6 in module m2 is not exported at all.
30 * @modules java.base/jdk.internal.misc
31 * @library /test/lib
32 * @compile myloaders/MyDiffClassLoader.java
33 * @compile p6/c6.java
34 * @compile c5.java
35 * @run main/othervm -Xbootclasspath/a:. UmodUpkgDiffCL_NotExp
36 */
37
38import static jdk.test.lib.Asserts.*;
39
40import java.lang.reflect.Layer;
41import java.lang.module.Configuration;
42import java.lang.module.ModuleDescriptor;
43import java.lang.module.ModuleFinder;
44import java.util.HashMap;
45import java.util.Map;
46import java.util.Set;
47import myloaders.MyDiffClassLoader;
48
49//
50// ClassLoader1 --> defines m1 --> no packages
51// ClassLoader2 --> defines m2 --> packages p6
52//
53// m1 can read m2
54// package p6 in m2 is not exported
55//
56// class c5 defined in unnamed module tries to access p6.c6 defined in m2
57// Access denied since even though unnamed module can read all modules, p6
58// in module m2 is not exported at all.
59//
60public class UmodUpkgDiffCL_NotExp {
61
62    // Create a Layer over the boot layer.
63    // Define modules within this layer to test access between
64    // publically defined classes within packages of those modules.
65    public void createLayerOnBoot() throws Throwable {
66
67        // Define module:     m1
68        // Can read:          java.base, m2
69        // Packages:          none
70        // Packages exported: none
71        ModuleDescriptor descriptor_m1 =
72                ModuleDescriptor.module("m1")
73                        .requires("java.base")
74                        .requires("m2")
75                        .build();
76
77        // Define module:     m2
78        // Can read:          java.base
79        // Packages:          p6
80        // Packages exported: none
81        ModuleDescriptor descriptor_m2 =
82                ModuleDescriptor.module("m2")
83                        .requires("java.base")
84                        .contains("p6")
85                        .build();
86
87        // Set up a ModuleFinder containing all modules for this layer.
88        ModuleFinder finder = ModuleLibrary.of(descriptor_m1, descriptor_m2);
89
90        // Resolves "m1"
91        Configuration cf = Layer.boot()
92                .configuration()
93                .resolveRequires(finder, ModuleFinder.of(), Set.of("m1"));
94
95        // map each module to differing class loaders for this test
96        Map<String, ClassLoader> map = new HashMap<>();
97        map.put("m1", MyDiffClassLoader.loader1);
98        map.put("m2", MyDiffClassLoader.loader2);
99
100        // Create Layer that contains m1 & m2
101        Layer layer = Layer.boot().defineModules(cf, map::get);
102
103        assertTrue(layer.findLoader("m1") == MyDiffClassLoader.loader1);
104        assertTrue(layer.findLoader("m2") == MyDiffClassLoader.loader2);
105        assertTrue(layer.findLoader("java.base") == null);
106
107        // now use the same loader to load class c5
108        // NOTE: module m1 does not define any packages.
109        //       c5 will be loaded in an unnamed module.
110        Class c5_class = MyDiffClassLoader.loader1.loadClass("c5");
111        try {
112            c5_class.newInstance();
113            throw new RuntimeException("Failed to get IAE (p6 in m2 is not exported to " +
114                                       "an unnamed module that c5 is defined within)");
115        } catch (IllegalAccessError e) {
116          System.out.println(e.getMessage());
117          if (!e.getMessage().contains("does not export")) {
118              throw new RuntimeException("Wrong message: " + e.getMessage());
119          }
120        }
121    }
122
123    public static void main(String args[]) throws Throwable {
124      UmodUpkgDiffCL_NotExp test = new UmodUpkgDiffCL_NotExp();
125      test.createLayerOnBoot();
126    }
127}
128