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
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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
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24 */
25
26 /*
27 * @test
28 * @summary Test if package p2 in module m2 is exported to all unnamed,
29 * then class p1.c1 in an unnamed module can read p2.c2 in module m2.
30 * @library /test/lib
31 * @modules java.base/jdk.internal.misc
32 * @modules java.base/jdk.internal.module
33 * @compile myloaders/MySameClassLoader.java
34 * @compile p2/c2.java
35 * @compile p1/c1.java
36 * @run main/othervm -Xbootclasspath/a:. ExportAllUnnamed
37 */
38
39 import static jdk.test.lib.Asserts.*;
40
41 import java.lang.module.Configuration;
42 import java.lang.module.ModuleDescriptor;
43 import java.lang.module.ModuleFinder;
44 import java.lang.reflect.Layer;
45 import java.lang.reflect.Module;
46 import java.util.HashMap;
47 import java.util.Map;
48 import java.util.Set;
49 import myloaders.MySameClassLoader;
50
51 //
52 // ClassLoader1 --> defines m1 --> no packages
53 // defines m2 --> packages p2
54 //
55 // m1 can read m2
56 // package p2 in m2 is exported unqualifiedly
57 //
58 // class p1.c1 defined in an unnamed module tries to access p2.c2 defined in m2
59 // Access allowed, an unnamed module can read all modules and p2 in module
60 // m2 is exported to all unnamed modules.
61
62 public class ExportAllUnnamed {
63
64 // Create a Layer over the boot layer.
65 // Define modules within this layer to test access between
66 // publically defined classes within packages of those modules.
67 public void createLayerOnBoot() throws Throwable {
68
69 // Define module: m1
70 // Can read: java.base, m2
71 // Packages: none
72 // Packages exported: none
73 ModuleDescriptor descriptor_m1 =
74 new ModuleDescriptor.Builder("m1")
75 .requires("java.base")
76 .requires("m2")
77 .build();
78
79 // Define module: m2
80 // Can read: java.base
81 // Packages: p2
82 // Packages exported: p2 is exported unqualifiedly
83 ModuleDescriptor descriptor_m2 =
84 new ModuleDescriptor.Builder("m2")
85 .requires("java.base")
86 .exports("p2", "m1")
87 .build();
88
89 // Set up a ModuleFinder containing all modules for this layer.
90 ModuleFinder finder = ModuleLibrary.of(descriptor_m1, descriptor_m2);
91
92 // Resolves "m1"
93 Configuration cf = Layer.boot()
94 .configuration()
95 .resolveRequires(finder, ModuleFinder.of(), Set.of("m1"));
96
97 // map each module to differing class loaders for this test
98 Map<String, ClassLoader> map = new HashMap<>();
99 map.put("m1", MySameClassLoader.loader1);
100 map.put("m2", MySameClassLoader.loader1);
101
102 // Create Layer that contains m1 & m2
103 Layer layer = Layer.boot().defineModules(cf, map::get);
104
105 assertTrue(layer.findLoader("m1") == MySameClassLoader.loader1);
106 assertTrue(layer.findLoader("m2") == MySameClassLoader.loader1);
107 assertTrue(layer.findLoader("java.base") == null);
108
109 Class p2_c2_class = MySameClassLoader.loader1.loadClass("p2.c2");
110 Module m2 = p2_c2_class.getModule();
111
112 // Export m2/p2 to all unnamed modules.
113 jdk.internal.module.Modules.addExportsToAllUnnamed(m2, "p2");
114
115 // now use the same loader to load class p1.c1
116 Class p1_c1_class = MySameClassLoader.loader1.loadClass("p1.c1");
117 try {
118 p1_c1_class.newInstance();
119 } catch (IllegalAccessError e) {
120 throw new RuntimeException("Test Failed, unnamed module failed to access public type p2.c2 " +
121 "that was exported to all unnamed");
122 }
123 }
124
125 public static void main(String args[]) throws Throwable {
126 ExportAllUnnamed test = new ExportAllUnnamed();
127 test.createLayerOnBoot();
128 }
129 }