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("class p1.c1 tried to access method p2.c2.method2()V (p1.c1 is in module m1x of loader myloaders.MySameClassLoader @") || 109 !message.contains("; p2.c2 is in module m2x of loader myloaders.MySameClassLoader @")) { 110 throw new RuntimeException("Test Failed, an IAE was thrown with the wrong message: " + e.toString()); 111 } 112 } catch (Throwable e) { 113 throw new RuntimeException("Test Failed, an IAE should be thrown since p2/c2's method2 is private"); 114 } 115 } 116 117 public static void main(String args[]) throws Throwable { 118 ExpQualToM1PrivateMethodIAE test = new ExpQualToM1PrivateMethodIAE(); 119 test.createLayerOnBoot(); 120 } 121 }