UmodDiffCL_ExpQualOther.java revision 11833:1cbffa2beba6
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 p1.c1 defined in an unnamed module tries to access p2.c2 defined in m2. 29 * Access is denied, since an unnamed module can read all modules but p2 in module 30 * m2 is exported specifically to module m1, not to all modules. 31 * @modules java.base/jdk.internal.misc 32 * @library /test/lib 33 * @compile myloaders/MyDiffClassLoader.java 34 * @compile p2/c2.java 35 * @compile p1/c1.java 36 * @run main/othervm -Xbootclasspath/a:. UmodDiffCL_ExpQualOther 37 */ 38 39import static jdk.test.lib.Asserts.*; 40 41import java.lang.reflect.Layer; 42import java.lang.module.Configuration; 43import java.lang.module.ModuleDescriptor; 44import java.lang.module.ModuleFinder; 45import java.util.HashMap; 46import java.util.Map; 47import java.util.Set; 48import myloaders.MyDiffClassLoader; 49 50// 51// ClassLoader1 --> defines m1 --> no packages 52// ClassLoader2 --> defines m2 --> packages p2 53// 54// m1 can read m2 55// package p2 in m2 is not exported 56// 57// class p1.c1 defined in an unnamed module tries to access p2.c2 defined in m2 58// Access denied, an unnamed module can read all modules but p2 in module 59// m2 is exported specifically to module m1 not to all modules. 60// 61public class UmodDiffCL_ExpQualOther { 62 63 // Create a Layer over the boot layer. 64 // Define modules within this layer to test access between 65 // publically defined classes within packages of those modules. 66 public void createLayerOnBoot() throws Throwable { 67 68 // Define module: m1 69 // Can read: java.base 70 // Packages: none 71 // Packages exported: none 72 ModuleDescriptor descriptor_m1 = 73 new ModuleDescriptor.Builder("m1") 74 .requires("java.base") 75 .requires("m2") 76 .build(); 77 78 // Define module: m2 79 // Can read: java.base 80 // Packages: p2 81 // Packages exported: none 82 ModuleDescriptor descriptor_m2 = 83 new ModuleDescriptor.Builder("m2") 84 .requires("java.base") 85 .exports("p2", "m1") 86 .build(); 87 88 // Set up a ModuleFinder containing all modules for this layer. 89 ModuleFinder finder = ModuleLibrary.of(descriptor_m1, descriptor_m2); 90 91 // Resolves "m1" 92 Configuration cf = Layer.boot() 93 .configuration() 94 .resolveRequires(finder, ModuleFinder.of(), Set.of("m1")); 95 96 // map each module to differing class loaders for this test 97 Map<String, ClassLoader> map = new HashMap<>(); 98 map.put("m1", MyDiffClassLoader.loader1); 99 map.put("m2", MyDiffClassLoader.loader2); 100 101 // Create Layer that contains m1 & m2 102 Layer layer = Layer.boot().defineModules(cf, map::get); 103 104 assertTrue(layer.findLoader("m1") == MyDiffClassLoader.loader1); 105 assertTrue(layer.findLoader("m2") == MyDiffClassLoader.loader2); 106 assertTrue(layer.findLoader("java.base") == null); 107 108 // now use the same loader to load class p1.c1 109 // NOTE: module m1 does not define a package named p1. 110 // p1 will be loaded in an unnamed module. 111 Class p1_c1_class = MyDiffClassLoader.loader1.loadClass("p1.c1"); 112 try { 113 p1_c1_class.newInstance(); 114 throw new RuntimeException("Failed to get IAE (p2 in m2 is exported to m1, not unqualifiedly"); 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 UmodDiffCL_ExpQualOther test = new UmodDiffCL_ExpQualOther(); 125 test.createLayerOnBoot(); 126 } 127} 128