1 /*
2 * Copyright (c) 2018, 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 Test that if module m1x can read module m2x, AND package p2 in m2x is
29 * exported qualifiedly to m1x, then class p1.c1 in m1x can read p2.c2 in m2x.
30 * However, p1.c1 tries to access a private method within p2.c2, verify
31 * that the IAE message contains the correct loader and module names.
32 * @modules java.base/jdk.internal.misc
33 * @library /test/lib
34 * @compile p1/c1.jasm
35 * @compile p2/c2.jasm
36 * @compile myloaders/MySameClassLoader.java
37 * @run main/othervm -Xbootclasspath/a:. ExpQualToM1PrivateMethodIAE
38 */
39
40 import static jdk.test.lib.Asserts.*;
41
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.MySameClassLoader;
49
50 public class ExpQualToM1PrivateMethodIAE {
51
52 // Create a layer over the boot layer.
53 // Define modules within this layer to test access between
54 // publically defined classes within packages of those modules.
55 public void createLayerOnBoot() throws Throwable {
56
57 // Define module: m1x
58 // Can read: java.base, m2x
59 // Packages: p1
60 // Packages exported: p1 is exported unqualifiedly
61 ModuleDescriptor descriptor_m1x =
62 ModuleDescriptor.newModule("m1x")
63 .requires("java.base")
64 .requires("m2x")
65 .exports("p1")
66 .build();
67
68 // Define module: m2x
69 // Can read: java.base
70 // Packages: p2
71 // Packages exported: p2 is exported qualifiedly to m1x
72 ModuleDescriptor descriptor_m2x =
73 ModuleDescriptor.newModule("m2x")
74 .requires("java.base")
75 .exports("p2", Set.of("m1x"))
76 .build();
77
78 // Set up a ModuleFinder containing all modules for this layer.
79 ModuleFinder finder = ModuleLibrary.of(descriptor_m1x, descriptor_m2x);
80
81 // Resolves "m1x"
82 Configuration cf = ModuleLayer.boot()
83 .configuration()
84 .resolve(finder, ModuleFinder.of(), Set.of("m1x"));
85
86 // map each module to the same class loader for this test
87 Map<String, ClassLoader> map = new HashMap<>();
88 map.put("m1x", MySameClassLoader.loader1);
89 map.put("m2x", MySameClassLoader.loader1);
90
91 // Create layer that contains m1x & m2x
92 ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get);
93
94 assertTrue(layer.findLoader("m1x") == MySameClassLoader.loader1);
95 assertTrue(layer.findLoader("m2x") == MySameClassLoader.loader1);
96
97 // now use the same loader to load class p1.c1
98 Class p1_c1_class = MySameClassLoader.loader1.loadClass("p1.c1");
99 try {
100 p1_c1_class.newInstance();
101 throw new RuntimeException("Test Failed, an IAE should be thrown since p2/c2's method2 is private");
102 } catch (IllegalAccessError e) {
103 String message = e.getMessage();
104 System.out.println(e.toString());
105 // java.lang.IllegalAccessError:
106 // tried to access method p2.c2.method2()V from class p1.c1 (p2.c2 is in module m2x of loader
107 // myloaders.MySameClassLoader @<id>; p1.c1 is in module m1x of loader myloaders.MySameClassLoader @<id>)
108 if (!message.contains("IllegalAccessError") &&
109 !message.contains("tried to access method p2.c2.method2()V from class p1.c1 (p2.c2 is in module m2x of loader myloaders.MySameClassLoader @") &&
110 !message.contains("; p1.c1 is in module m1x of loader myloaders.MySameClassLoader @")) {
111 throw new RuntimeException("Test Failed, an IAE was thrown with the wrong message: " + e.toString());
112 }
113 } catch (Throwable e) {
114 throw new RuntimeException("Test Failed, an IAE should be thrown since p2/c2's method2 is private");
115 }
116 }
117
118 public static void main(String args[]) throws Throwable {
119 ExpQualToM1PrivateMethodIAE test = new ExpQualToM1PrivateMethodIAE();
120 test.createLayerOnBoot();
121 }
122 }