J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1999-2003 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* @test |
| 25 | * @bug 4227192 |
| 26 | * @summary This is a test of the restrictions on the parameters that may |
| 27 | * be passed to the Proxy.getProxyClass method. |
| 28 | * @author Peter Jones |
| 29 | * |
| 30 | * @build ClassRestrictions |
| 31 | * @run main ClassRestrictions |
| 32 | */ |
| 33 | |
| 34 | import java.lang.reflect.Proxy; |
| 35 | import java.net.URLClassLoader; |
| 36 | |
| 37 | public class ClassRestrictions { |
| 38 | |
| 39 | public interface Bar { |
| 40 | int foo(); |
| 41 | } |
| 42 | |
| 43 | public interface Baz { |
| 44 | long foo(); |
| 45 | } |
| 46 | |
| 47 | interface Bashful { |
| 48 | void foo(); |
| 49 | } |
| 50 | |
| 51 | public static void main(String[] args) { |
| 52 | |
| 53 | System.err.println( |
| 54 | "\nTest of restrictions on parameters to Proxy.getProxyClass\n"); |
| 55 | |
| 56 | try { |
| 57 | ClassLoader loader = ClassLoader.getSystemClassLoader(); |
| 58 | Class[] interfaces; |
| 59 | Class proxyClass; |
| 60 | |
| 61 | /* |
| 62 | * All of the Class objects in the interfaces array must represent |
| 63 | * interfaces, not classes or primitive types. |
| 64 | */ |
| 65 | try { |
| 66 | interfaces = new Class[] { Object.class }; |
| 67 | proxyClass = Proxy.getProxyClass(loader, interfaces); |
| 68 | throw new RuntimeException( |
| 69 | "proxy class created with java.lang.Object as interface"); |
| 70 | } catch (IllegalArgumentException e) { |
| 71 | e.printStackTrace(); |
| 72 | System.err.println(); |
| 73 | // assume exception is for intended failure |
| 74 | } |
| 75 | try { |
| 76 | interfaces = new Class[] { Integer.TYPE }; |
| 77 | proxyClass = Proxy.getProxyClass(loader, interfaces); |
| 78 | throw new RuntimeException( |
| 79 | "proxy class created with int.class as interface"); |
| 80 | } catch (IllegalArgumentException e) { |
| 81 | e.printStackTrace(); |
| 82 | System.err.println(); |
| 83 | // assume exception is for intended failure |
| 84 | } |
| 85 | |
| 86 | /* |
| 87 | * No two elements in the interfaces array may refer to identical |
| 88 | * Class objects. |
| 89 | */ |
| 90 | try { |
| 91 | interfaces = new Class[] { Bar.class, Bar.class }; |
| 92 | proxyClass = Proxy.getProxyClass(loader, interfaces); |
| 93 | throw new RuntimeException( |
| 94 | "proxy class created with repeated interfaces"); |
| 95 | } catch (IllegalArgumentException e) { |
| 96 | e.printStackTrace(); |
| 97 | System.err.println(); |
| 98 | // assume exception is for intended failure |
| 99 | } |
| 100 | |
| 101 | /* |
| 102 | * All of the interfaces types must be visible by name though the |
| 103 | * specified class loader. |
| 104 | */ |
| 105 | ClassLoader altLoader = new URLClassLoader( |
| 106 | ((URLClassLoader) loader).getURLs(), null); |
| 107 | Class altBarClass; |
| 108 | altBarClass = Class.forName(Bar.class.getName(), false, altLoader); |
| 109 | try { |
| 110 | interfaces = new Class[] { altBarClass }; |
| 111 | proxyClass = Proxy.getProxyClass(loader, interfaces); |
| 112 | throw new RuntimeException( |
| 113 | "proxy class created with interface " + |
| 114 | "not visible to class loader"); |
| 115 | } catch (IllegalArgumentException e) { |
| 116 | e.printStackTrace(); |
| 117 | System.err.println(); |
| 118 | // assume exception is for intended failure |
| 119 | } |
| 120 | |
| 121 | /* |
| 122 | * All non-public interfaces must be in the same package. |
| 123 | */ |
| 124 | Class nonPublic1 = Bashful.class; |
| 125 | Class nonPublic2 = null; |
| 126 | String[] nonPublicInterfaces = new String[] { |
| 127 | "java.awt.Conditional", |
| 128 | "java.util.zip.ZipConstants", |
| 129 | "javax.swing.GraphicsWrapper", |
| 130 | "javax.swing.JPopupMenu$Popup", |
| 131 | "javax.swing.JTable$Resizable2", |
| 132 | "javax.swing.JTable$Resizable3", |
| 133 | "javax.swing.ToolTipManager$Popup", |
| 134 | "sun.audio.Format", |
| 135 | "sun.audio.HaePlayable", |
| 136 | "sun.tools.agent.StepConstants", |
| 137 | }; |
| 138 | for (int i = 0; i < nonPublicInterfaces.length; i++) { |
| 139 | try { |
| 140 | nonPublic2 = Class.forName(nonPublicInterfaces[i]); |
| 141 | break; |
| 142 | } catch (ClassNotFoundException e) { |
| 143 | } |
| 144 | } |
| 145 | if (nonPublic2 == null) { |
| 146 | throw new RuntimeException( |
| 147 | "no second non-public interface found for test"); |
| 148 | } |
| 149 | try { |
| 150 | interfaces = new Class[] { nonPublic1, nonPublic2 }; |
| 151 | proxyClass = Proxy.getProxyClass(loader, interfaces); |
| 152 | throw new RuntimeException( |
| 153 | "proxy class created with two non-public interfaces " + |
| 154 | "in different packages"); |
| 155 | } catch (IllegalArgumentException e) { |
| 156 | e.printStackTrace(); |
| 157 | System.err.println(); |
| 158 | // assume exception is for intended failure |
| 159 | } |
| 160 | |
| 161 | /* |
| 162 | * No two interfaces may each have a method with the same name and |
| 163 | * parameter signature but different return type. |
| 164 | */ |
| 165 | try { |
| 166 | interfaces = new Class[] { Bar.class, Baz.class }; |
| 167 | proxyClass = Proxy.getProxyClass(loader, interfaces); |
| 168 | throw new RuntimeException( |
| 169 | "proxy class created with conflicting methods"); |
| 170 | } catch (IllegalArgumentException e) { |
| 171 | e.printStackTrace(); |
| 172 | System.err.println(); |
| 173 | // assume exception is for intended failure |
| 174 | } |
| 175 | |
| 176 | /* |
| 177 | * All components of this test have passed. |
| 178 | */ |
| 179 | System.err.println("\nTEST PASSED"); |
| 180 | |
| 181 | } catch (Exception e) { |
| 182 | System.err.println("\nTEST FAILED:"); |
| 183 | e.printStackTrace(); |
| 184 | throw new RuntimeException("TEST FAILED: " + e.toString()); |
| 185 | } |
| 186 | } |
| 187 | } |