| /* |
| * Copyright (c) 2000, 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. |
| */ |
| |
| /* |
| * @bug 4325590 |
| * @summary Verify that superclass data is not lost when incoming superclass |
| * descriptor is matched with local class that is not a superclass of |
| * the deserialized instance's class. |
| */ |
| |
| import java.io.*; |
| import java.net.*; |
| |
| class MixedSuperclassStream extends ObjectInputStream { |
| MixedSuperclassStream(InputStream in) throws IOException { super(in); } |
| |
| protected Class resolveClass(ObjectStreamClass desc) |
| throws IOException, ClassNotFoundException |
| { |
| // resolve A's classdesc to class != B's superclass |
| String name = desc.getName(); |
| if (name.equals("A")) { |
| return Class.forName(name, true, Test.ldr1); |
| } else if (name.equals("B")) { |
| return Class.forName(name, true, Test.ldr2); |
| } else { |
| return super.resolveClass(desc); |
| } |
| } |
| } |
| |
| public class Test { |
| |
| static URLClassLoader ldr1, ldr2; |
| static { |
| try { |
| ldr1 = new URLClassLoader(new URL[] { new URL("file:cb1.jar") }); |
| ldr2 = new URLClassLoader(new URL[] { new URL("file:cb2.jar") }); |
| } catch (MalformedURLException ex) { |
| throw new Error(); |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| Runnable a = (Runnable) Class.forName("B", true, ldr1).newInstance(); |
| a.run(); |
| |
| ByteArrayOutputStream bout = new ByteArrayOutputStream(); |
| ObjectOutputStream oout = new ObjectOutputStream(bout); |
| oout.writeObject(a); |
| oout.close(); |
| |
| ByteArrayInputStream bin = |
| new ByteArrayInputStream(bout.toByteArray()); |
| ObjectInputStream oin = new MixedSuperclassStream(bin); |
| a = (Runnable) oin.readObject(); |
| a.run(); |
| } |
| } |