1 /* 2 * Copyright (c) 2016, 2017, 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 unnamed module tries to access p2.c2 defined in m2x. 29 * Access is denied since even though unnamed module can read all modules, p2 30 * in module m2x is not exported at all. 31 * @modules java.base/jdk.internal.misc 32 * @library /test/lib 33 * @compile myloaders/MyDiffClassLoader.java 34 * @compile p1/c1.java 35 * @run main/othervm -Xbootclasspath/a:. UmodDiffCL_PkgNotExp 36 */ 37 38 import static jdk.test.lib.Asserts.*; 39 40 import java.lang.module.Configuration; 41 import java.lang.module.ModuleDescriptor; 42 import java.lang.module.ModuleFinder; 43 import java.util.HashMap; 44 import java.util.Map; 45 import java.util.Set; 46 import myloaders.MyDiffClassLoader; 47 48 // 49 // ClassLoader1 --> defines m1x --> no packages 50 // ClassLoader2 --> defines m2x --> packages p2 51 // 52 // m1x can read m2x 53 // package p2 in m2x is not exported 54 // 55 // class p1.c1 defined in unnamed module tries to access p2.c2 defined in m2x 56 // Access denied since even though unnamed module can read all modules, p2 57 // in module m2x is not exported at all. 58 // 59 public class UmodDiffCL_PkgNotExp { 60 61 // Create a layer over the boot layer. 62 // Define modules within this layer to test access between 63 // publically defined classes within packages of those modules. 64 public void createLayerOnBoot() throws Throwable { 65 66 // Define module: m1x 67 // Can read: java.base, m2x 68 // Packages: none 69 // Packages exported: none 70 ModuleDescriptor descriptor_m1x = 71 ModuleDescriptor.newModule("m1x") 72 .requires("java.base") 73 .requires("m2x") 74 .build(); 75 76 // Define module: m2x 77 // Can read: java.base 78 // Packages: p2 79 // Packages exported: none 80 ModuleDescriptor descriptor_m2x = 81 ModuleDescriptor.newModule("m2x") 82 .requires("java.base") 83 .packages(Set.of("p2")) 84 .build(); 85 86 // Set up a ModuleFinder containing all modules for this layer. 87 ModuleFinder finder = ModuleLibrary.of(descriptor_m1x, descriptor_m2x); 88 89 // Resolves "m1x" 90 Configuration cf = ModuleLayer.boot() 91 .configuration() 92 .resolve(finder, ModuleFinder.of(), Set.of("m1x")); 93 94 // map each module to differing class loaders for this test 95 Map<String, ClassLoader> map = new HashMap<>(); 96 map.put("m1x", MyDiffClassLoader.loader1); 97 map.put("m2x", MyDiffClassLoader.loader2); 98 99 // Create layer that contains m1x & m2x 100 ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get); 101 102 assertTrue(layer.findLoader("m1x") == MyDiffClassLoader.loader1); 103 assertTrue(layer.findLoader("m2x") == MyDiffClassLoader.loader2); 104 assertTrue(layer.findLoader("java.base") == null); 105 106 // now use the same loader to load class p1.c1 107 // NOTE: module m1x does not define a package named p1. 108 // p1 will be loaded in an unnamed module. 109 Class p1_c1_class = MyDiffClassLoader.loader1.loadClass("p1.c1"); 110 try { 111 p1_c1_class.newInstance(); 112 throw new RuntimeException("Failed to get IAE (p2 in m2x is not exported to an unnamed module)"); 113 } catch (IllegalAccessError e) { 114 System.out.println(e.getMessage()); 115 if (!e.getMessage().contains("does not export")) { 116 throw new RuntimeException("Wrong message: " + e.getMessage()); 117 } 118 } 119 } 120 121 public static void main(String args[]) throws Throwable { 122 UmodDiffCL_PkgNotExp test = new UmodDiffCL_PkgNotExp(); 123 test.createLayerOnBoot(); 124 } 125 }