1 /* 2 * Copyright (c) 2001, 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 /* @test 25 * @bug 4413817 26 * @summary Verify that ObjectInputStream.resolveProxyClass can properly 27 * resolve a dynamic proxy class which implements a non-public 28 * interface not defined in the latest user defined class loader. 29 */ 30 31 import java.io.*; 32 import java.lang.reflect.*; 33 34 public class NonPublicInterface { 35 36 static class Handler implements InvocationHandler, Serializable { 37 public Object invoke(Object obj, Method meth, Object[] args) { 38 return null; 39 } 40 } 41 42 public static void main(String[] args) throws Exception { 43 Class nonPublic = null; 44 String[] nonPublicInterfaces = new String[] { 45 "java.awt.Conditional", 46 "java.util.zip.ZipConstants", 47 "javax.swing.GraphicsWrapper", 48 "javax.swing.JPopupMenu$Popup", 49 "javax.swing.JTable$Resizable2", 50 "javax.swing.JTable$Resizable3", 51 "javax.swing.ToolTipManager$Popup", 52 "sun.audio.Format", 53 "sun.audio.HaePlayable", 54 "sun.tools.agent.StepConstants", 55 }; 56 for (int i = 0; i < nonPublicInterfaces.length; i++) { 57 try { 58 nonPublic = Class.forName(nonPublicInterfaces[i]); 59 break; 60 } catch (ClassNotFoundException ex) { 61 } 62 } 63 if (nonPublic == null) { 64 throw new Error("couldn't find system non-public interface"); 65 } 66 67 ByteArrayOutputStream bout = new ByteArrayOutputStream(); 68 ObjectOutputStream oout = new ObjectOutputStream(bout); 69 oout.writeObject(Proxy.newProxyInstance(nonPublic.getClassLoader(), 70 new Class[]{ nonPublic }, new Handler())); 71 oout.close(); 72 ObjectInputStream oin = new ObjectInputStream( 73 new ByteArrayInputStream(bout.toByteArray())); 74 oin.readObject(); 75 } 76 }