| /* |
| * Copyright (c) 1999, 2003, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @bug 4227192 |
| * @summary This is a test of the restrictions on the parameters that may |
| * be passed to the Proxy.getProxyClass method. |
| * @author Peter Jones |
| * |
| * @build ClassRestrictions |
| * @run main ClassRestrictions |
| */ |
| |
| import java.lang.reflect.Proxy; |
| import java.net.URLClassLoader; |
| |
| public class ClassRestrictions { |
| |
| public interface Bar { |
| int foo(); |
| } |
| |
| public interface Baz { |
| long foo(); |
| } |
| |
| interface Bashful { |
| void foo(); |
| } |
| |
| public static void main(String[] args) { |
| |
| System.err.println( |
| "\nTest of restrictions on parameters to Proxy.getProxyClass\n"); |
| |
| try { |
| ClassLoader loader = ClassLoader.getSystemClassLoader(); |
| Class[] interfaces; |
| Class proxyClass; |
| |
| /* |
| * All of the Class objects in the interfaces array must represent |
| * interfaces, not classes or primitive types. |
| */ |
| try { |
| interfaces = new Class[] { Object.class }; |
| proxyClass = Proxy.getProxyClass(loader, interfaces); |
| throw new RuntimeException( |
| "proxy class created with java.lang.Object as interface"); |
| } catch (IllegalArgumentException e) { |
| e.printStackTrace(); |
| System.err.println(); |
| // assume exception is for intended failure |
| } |
| try { |
| interfaces = new Class[] { Integer.TYPE }; |
| proxyClass = Proxy.getProxyClass(loader, interfaces); |
| throw new RuntimeException( |
| "proxy class created with int.class as interface"); |
| } catch (IllegalArgumentException e) { |
| e.printStackTrace(); |
| System.err.println(); |
| // assume exception is for intended failure |
| } |
| |
| /* |
| * No two elements in the interfaces array may refer to identical |
| * Class objects. |
| */ |
| try { |
| interfaces = new Class[] { Bar.class, Bar.class }; |
| proxyClass = Proxy.getProxyClass(loader, interfaces); |
| throw new RuntimeException( |
| "proxy class created with repeated interfaces"); |
| } catch (IllegalArgumentException e) { |
| e.printStackTrace(); |
| System.err.println(); |
| // assume exception is for intended failure |
| } |
| |
| /* |
| * All of the interfaces types must be visible by name though the |
| * specified class loader. |
| */ |
| ClassLoader altLoader = new URLClassLoader( |
| ((URLClassLoader) loader).getURLs(), null); |
| Class altBarClass; |
| altBarClass = Class.forName(Bar.class.getName(), false, altLoader); |
| try { |
| interfaces = new Class[] { altBarClass }; |
| proxyClass = Proxy.getProxyClass(loader, interfaces); |
| throw new RuntimeException( |
| "proxy class created with interface " + |
| "not visible to class loader"); |
| } catch (IllegalArgumentException e) { |
| e.printStackTrace(); |
| System.err.println(); |
| // assume exception is for intended failure |
| } |
| |
| /* |
| * All non-public interfaces must be in the same package. |
| */ |
| Class nonPublic1 = Bashful.class; |
| Class nonPublic2 = null; |
| String[] nonPublicInterfaces = new String[] { |
| "java.awt.Conditional", |
| "java.util.zip.ZipConstants", |
| "javax.swing.GraphicsWrapper", |
| "javax.swing.JPopupMenu$Popup", |
| "javax.swing.JTable$Resizable2", |
| "javax.swing.JTable$Resizable3", |
| "javax.swing.ToolTipManager$Popup", |
| "sun.audio.Format", |
| "sun.audio.HaePlayable", |
| "sun.tools.agent.StepConstants", |
| }; |
| for (int i = 0; i < nonPublicInterfaces.length; i++) { |
| try { |
| nonPublic2 = Class.forName(nonPublicInterfaces[i]); |
| break; |
| } catch (ClassNotFoundException e) { |
| } |
| } |
| if (nonPublic2 == null) { |
| throw new RuntimeException( |
| "no second non-public interface found for test"); |
| } |
| try { |
| interfaces = new Class[] { nonPublic1, nonPublic2 }; |
| proxyClass = Proxy.getProxyClass(loader, interfaces); |
| throw new RuntimeException( |
| "proxy class created with two non-public interfaces " + |
| "in different packages"); |
| } catch (IllegalArgumentException e) { |
| e.printStackTrace(); |
| System.err.println(); |
| // assume exception is for intended failure |
| } |
| |
| /* |
| * No two interfaces may each have a method with the same name and |
| * parameter signature but different return type. |
| */ |
| try { |
| interfaces = new Class[] { Bar.class, Baz.class }; |
| proxyClass = Proxy.getProxyClass(loader, interfaces); |
| throw new RuntimeException( |
| "proxy class created with conflicting methods"); |
| } catch (IllegalArgumentException e) { |
| e.printStackTrace(); |
| System.err.println(); |
| // assume exception is for intended failure |
| } |
| |
| /* |
| * All components of this test have passed. |
| */ |
| System.err.println("\nTEST PASSED"); |
| |
| } catch (Exception e) { |
| System.err.println("\nTEST FAILED:"); |
| e.printStackTrace(); |
| throw new RuntimeException("TEST FAILED: " + e.toString()); |
| } |
| } |
| } |