1/* 2 * Copyright (c) 2015, 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 * @build ModuleSetAccessibleTest 27 * @modules java.base/java.lang:open 28 * java.base/jdk.internal.misc:+open 29 * @run testng/othervm --illegal-access=deny ModuleSetAccessibleTest 30 * @summary Test java.lang.reflect.AccessibleObject with modules 31 */ 32 33import java.lang.reflect.AccessibleObject; 34import java.lang.reflect.Constructor; 35import java.lang.reflect.Field; 36import java.lang.reflect.InaccessibleObjectException; 37import java.lang.reflect.InvocationTargetException; 38import java.lang.reflect.Method; 39 40import jdk.internal.misc.Unsafe; 41 42import org.testng.annotations.Test; 43import static org.testng.Assert.*; 44 45@Test 46public class ModuleSetAccessibleTest { 47 48 /** 49 * Invoke a private constructor on a public class in an exported package 50 */ 51 public void testPrivateConstructorInExportedPackage() throws Exception { 52 Constructor<?> ctor = Unsafe.class.getDeclaredConstructor(); 53 54 try { 55 ctor.newInstance(); 56 assertTrue(false); 57 } catch (IllegalAccessException expected) { } 58 59 ctor.setAccessible(true); 60 Unsafe unsafe = (Unsafe) ctor.newInstance(); 61 } 62 63 64 /** 65 * Invoke a private method on a public class in an exported package 66 */ 67 public void testPrivateMethodInExportedPackage() throws Exception { 68 Method m = Unsafe.class.getDeclaredMethod("throwIllegalAccessError"); 69 try { 70 m.invoke(null); 71 assertTrue(false); 72 } catch (IllegalAccessException expected) { } 73 74 m.setAccessible(true); 75 try { 76 m.invoke(null); 77 assertTrue(false); 78 } catch (InvocationTargetException e) { 79 // thrown by throwIllegalAccessError 80 assertTrue(e.getCause() instanceof IllegalAccessError); 81 } 82 } 83 84 85 /** 86 * Access a private field in a public class that is an exported package 87 */ 88 public void testPrivateFieldInExportedPackage() throws Exception { 89 Field f = Unsafe.class.getDeclaredField("theUnsafe"); 90 91 try { 92 f.get(null); 93 assertTrue(false); 94 } catch (IllegalAccessException expected) { } 95 96 f.setAccessible(true); 97 Unsafe unsafe = (Unsafe) f.get(null); 98 } 99 100 101 /** 102 * Invoke a public constructor on a public class in a non-exported package 103 */ 104 public void testPublicConstructorInNonExportedPackage() throws Exception { 105 Class<?> clazz = Class.forName("sun.security.x509.X500Name"); 106 Constructor<?> ctor = clazz.getConstructor(String.class); 107 108 try { 109 ctor.newInstance("cn=duke"); 110 assertTrue(false); 111 } catch (IllegalAccessException expected) { } 112 113 try { 114 ctor.setAccessible(true); 115 assertTrue(false); 116 } catch (InaccessibleObjectException expected) { } 117 118 ctor.setAccessible(false); // should succeed 119 } 120 121 122 /** 123 * Access a public field in a public class that in a non-exported package 124 */ 125 public void testPublicFieldInNonExportedPackage() throws Exception { 126 Class<?> clazz = Class.forName("sun.security.x509.X500Name"); 127 Field f = clazz.getField("SERIALNUMBER_OID"); 128 129 try { 130 f.get(null); 131 assertTrue(false); 132 } catch (IllegalAccessException expected) { } 133 134 try { 135 f.setAccessible(true); 136 assertTrue(false); 137 } catch (InaccessibleObjectException expected) { } 138 139 f.setAccessible(false); // should succeed 140 } 141 142 143 /** 144 * Test that the Class constructor cannot be make accessible. 145 */ 146 public void testJavaLangClass() throws Exception { 147 148 // non-public constructor 149 Constructor<?> ctor 150 = Class.class.getDeclaredConstructor(ClassLoader.class, Class.class); 151 AccessibleObject[] ctors = { ctor }; 152 153 try { 154 ctor.setAccessible(true); 155 assertTrue(false); 156 } catch (SecurityException expected) { } 157 158 try { 159 AccessibleObject.setAccessible(ctors, true); 160 assertTrue(false); 161 } catch (SecurityException expected) { } 162 163 // should succeed 164 ctor.setAccessible(false); 165 AccessibleObject.setAccessible(ctors, false); 166 167 } 168 169} 170