1 /* 2 * Copyright (c) 2016, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @summary Test if package p2 in module m2x is exported to all unnamed, 27 * then class p1.c1 in an unnamed module can read p2.c2 in module m2x. 28 * @library /test/lib 29 * @modules java.base/jdk.internal.misc 30 * @modules java.base/jdk.internal.module 31 * @compile myloaders/MySameClassLoader.java 32 * @compile p2/c2.java 33 * @compile p1/c1.java 34 * @run main/othervm -Xbootclasspath/a:. ExportAllUnnamed 35 */ 36 37 import static jdk.test.lib.Asserts.*; 38 39 import java.lang.module.Configuration; 40 import java.lang.module.ModuleDescriptor; 41 import java.lang.module.ModuleFinder; 42 import java.util.HashMap; 43 import java.util.Map; 44 import java.util.Set; 45 import myloaders.MySameClassLoader; 46 47 // 48 // ClassLoader1 --> defines m1x --> no packages 49 // defines m2x --> packages p2 50 // 51 // m1x can read m2x 52 // package p2 in m2x is exported unqualifiedly 53 // 54 // class p1.c1 defined in an unnamed module tries to access p2.c2 defined in m2x 55 // Access allowed, an unnamed module can read all modules and p2 in module 56 // m2x is exported to all unnamed modules. 57 58 public class ExportAllUnnamed { 59 60 // Create a layer over the boot layer. 61 // Define modules within this layer to test access between 62 // publically defined classes within packages of those modules. 63 public void createLayerOnBoot() throws Throwable { 64 65 // Define module: m1x 66 // Can read: java.base, m2x 67 // Packages: none 68 // Packages exported: none 69 ModuleDescriptor descriptor_m1x = 70 ModuleDescriptor.newModule("m1x") 71 .requires("java.base") 72 .requires("m2x") 73 .build(); 74 75 // Define module: m2x 76 // Can read: java.base 77 // Packages: p2 78 // Packages exported: p2 is exported unqualifiedly 79 ModuleDescriptor descriptor_m2x = 80 ModuleDescriptor.newModule("m2x") 81 .requires("java.base") 82 .exports("p2", Set.of("m1x")) 83 .build(); 84 85 // Set up a ModuleFinder containing all modules for this layer. 86 ModuleFinder finder = ModuleLibrary.of(descriptor_m1x, descriptor_m2x); 87 88 // Resolves "m1x" 89 Configuration cf = ModuleLayer.boot() 90 .configuration() 91 .resolve(finder, ModuleFinder.of(), Set.of("m1x")); 92 93 // map each module to differing class loaders for this test 94 Map<String, ClassLoader> map = new HashMap<>(); 95 map.put("m1x", MySameClassLoader.loader1); 96 map.put("m2x", MySameClassLoader.loader1); 97 98 // Create layer that contains m1x & m2x 99 ModuleLayer layer = ModuleLayer.boot().defineModules(cf, map::get); 100 101 assertTrue(layer.findLoader("m1x") == MySameClassLoader.loader1); 102 assertTrue(layer.findLoader("m2x") == MySameClassLoader.loader1); 103 assertTrue(layer.findLoader("java.base") == null); 104 105 Class p2_c2_class = MySameClassLoader.loader1.loadClass("p2.c2"); 106 Module m2x = p2_c2_class.getModule(); 107 108 // Export m2x/p2 to all unnamed modules. 109 jdk.internal.module.Modules.addExportsToAllUnnamed(m2x, "p2"); 110 111 // now use the same loader to load class p1.c1 112 Class p1_c1_class = MySameClassLoader.loader1.loadClass("p1.c1"); 113 try { 114 p1_c1_class.newInstance(); 115 } catch (IllegalAccessError e) { 116 throw new RuntimeException("Test Failed, unnamed module failed to access public type p2.c2 " + 117 "that was exported to all unnamed"); 118 } 119 } 120 121 public static void main(String args[]) throws Throwable { 122 ExportAllUnnamed test = new ExportAllUnnamed(); 123 test.createLayerOnBoot(); 124 } 125 }