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
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.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 //
60 public 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 new ModuleDescriptor.Builder("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 new ModuleDescriptor.Builder("m2")
83 .requires("java.base")
84 .conceals("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 }