1 /* 2 * Copyright (c) 2000, 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 * @bug 4348213 26 * @summary Verify that deserialization allows an incoming class descriptor 27 * representing a class in the unnamed package to be resolved to a 28 * local class with the same name in a named package, and vice-versa. 29 */ 30 31 import java.io.*; 32 33 class A implements Serializable { 34 private static final long serialVersionUID = 0L; 35 } 36 37 class TestObjectInputStream extends ObjectInputStream { 38 TestObjectInputStream(InputStream in) throws IOException { super(in); } 39 protected Class resolveClass(ObjectStreamClass desc) 40 throws IOException, ClassNotFoundException 41 { 42 String name = desc.getName(); 43 if (name.equals("A")) { 44 return pkg.A.class; 45 } else if (name.equals("pkg.A")) { 46 return A.class; 47 } else { 48 return super.resolveClass(desc); 49 } 50 } 51 } 52 53 public class Test { 54 public static void main(String[] args) throws Exception { 55 ByteArrayOutputStream bout = new ByteArrayOutputStream(); 56 ObjectOutputStream oout = new ObjectOutputStream(bout); 57 oout.writeObject(new A()); 58 oout.writeObject(new pkg.A()); 59 oout.close(); 60 61 ObjectInputStream oin = new TestObjectInputStream( 62 new ByteArrayInputStream(bout.toByteArray())); 63 oin.readObject(); 64 oin.readObject(); 65 } 66 }