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 /testlibrary /test/lib 33 * @compile myloaders/MyDiffClassLoader.java 34 * @compile p2/c2.java 35 * @compile p1/c1.java 36 * @build UmodDiffCL_ExpQualOther 37 * @run main/othervm -Xbootclasspath/a:. UmodDiffCL_ExpQualOther 38 */ 39 40 import static jdk.test.lib.Asserts.*; 41 42 import java.lang.reflect.Layer; 43 import java.lang.module.Configuration; 44 import java.lang.module.ModuleDescriptor; 45 import java.lang.module.ModuleFinder; 46 import java.util.HashMap; 47 import java.util.Map; 48 import java.util.Set; 49 import myloaders.MyDiffClassLoader; 50 51 // 52 // ClassLoader1 --> defines m1 --> no packages 53 // ClassLoader2 --> defines m2 --> packages p2 54 // 55 // m1 can read m2 56 // package p2 in m2 is not exported 57 // 58 // class p1.c1 defined in an unnamed module tries to access p2.c2 defined in m2 59 // Access denied, an unnamed module can read all modules but p2 in module 60 // m2 is exported specifically to module m1 not to all modules. 61 // 62 public class UmodDiffCL_ExpQualOther { 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 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: none 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", MyDiffClassLoader.loader1); 100 map.put("m2", MyDiffClassLoader.loader2); 101 102 // Create Layer that contains m1 & m2 103 Layer layer = Layer.boot().defineModules(cf, map::get); 104 105 assertTrue(layer.findLoader("m1") == MyDiffClassLoader.loader1); 106 assertTrue(layer.findLoader("m2") == MyDiffClassLoader.loader2); 107 assertTrue(layer.findLoader("java.base") == null); 108 109 // now use the same loader to load class p1.c1 110 // NOTE: module m1 does not define a package named p1. 111 // p1 will be loaded in an unnamed module. 112 Class p1_c1_class = MyDiffClassLoader.loader1.loadClass("p1.c1"); 113 try { 114 p1_c1_class.newInstance(); 115 throw new RuntimeException("Failed to get IAE (p2 in m2 is exported to m1, not unqualifiedly"); 116 } catch (IllegalAccessError e) { 117 System.out.println(e.getMessage()); 118 if (!e.getMessage().contains("does not export")) { 119 throw new RuntimeException("Wrong message: " + e.getMessage()); 120 } 121 } 122 } 123 124 public static void main(String args[]) throws Throwable { 125 UmodDiffCL_ExpQualOther test = new UmodDiffCL_ExpQualOther(); 126 test.createLayerOnBoot(); 127 } 128 }