| /* |
| * Copyright (c) 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 4838379 |
| * @summary Verify that TC_OBJECT followed by a class descriptor for an enum |
| * class results in an InvalidClassException, as does TC_ENUM followed |
| * by a class descriptor for a non-enum class. |
| */ |
| |
| import java.io.*; |
| |
| enum Foo { bar } |
| |
| class TestObjectOutputStream extends ObjectOutputStream { |
| |
| static ObjectStreamClass fooDesc = ObjectStreamClass.lookup(Foo.class); |
| static ObjectStreamClass integerDesc = |
| ObjectStreamClass.lookup(Integer.class); |
| |
| TestObjectOutputStream(OutputStream out) throws IOException { |
| super(out); |
| } |
| |
| protected void writeClassDescriptor(ObjectStreamClass desc) |
| throws IOException |
| { |
| if (desc == fooDesc) { |
| super.writeClassDescriptor(integerDesc); |
| } else if (desc == integerDesc) { |
| super.writeClassDescriptor(fooDesc); |
| } else { |
| super.writeClassDescriptor(desc); |
| } |
| } |
| } |
| |
| public class Test { |
| public static void main(String[] args) throws Exception { |
| ByteArrayOutputStream bout = new ByteArrayOutputStream(); |
| ObjectOutputStream oout = new TestObjectOutputStream(bout); |
| oout.writeObject(Foo.bar); |
| oout.close(); |
| ObjectInputStream oin = new ObjectInputStream( |
| new ByteArrayInputStream(bout.toByteArray())); |
| try { |
| Object obj = oin.readObject(); |
| throw new Error("read of " + obj + " should not have succeeded"); |
| } catch (InvalidClassException e) { |
| System.out.println("caught expected exception " + e); |
| } |
| |
| oout = new TestObjectOutputStream(bout = new ByteArrayOutputStream()); |
| oout.writeObject(new Integer(5)); |
| oout.close(); |
| oin = new ObjectInputStream( |
| new ByteArrayInputStream(bout.toByteArray())); |
| try { |
| Object obj = oin.readObject(); |
| throw new Error("read of " + obj + " should not have succeeded"); |
| } catch (InvalidClassException e) { |
| System.out.println("caught expected exception " + e); |
| } |
| } |
| } |