89 lines
3.2 KiB
Java
89 lines
3.2 KiB
Java
/*
|
|
* Copyright (c) 1998, 2016, 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 4136620 4144590
|
|
@summary Make sure that Attribute & subclasses are serialized and deserialized correctly
|
|
@modules java.desktop
|
|
*/
|
|
|
|
import java.text.AttributedCharacterIterator.Attribute;
|
|
import java.awt.font.TextAttribute;
|
|
import java.io.*;
|
|
|
|
public class ReadResolve {
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
testSerializationCycle(Attribute.LANGUAGE);
|
|
testSerializationCycle(TextAttribute.INPUT_METHOD_HIGHLIGHT);
|
|
|
|
boolean gotException = false;
|
|
Attribute result = null;
|
|
try {
|
|
result = doSerializationCycle(FakeAttribute.LANGUAGE);
|
|
} catch (Throwable e) {
|
|
gotException = true;
|
|
}
|
|
if (!gotException) {
|
|
throw new RuntimeException("Attribute should throw an exception when given a fake \"language\" attribute. Deserialized object: " + result);
|
|
}
|
|
}
|
|
|
|
static Attribute doSerializationCycle(Attribute attribute) throws Exception {
|
|
|
|
ByteArrayOutputStream baos = new ByteArrayOutputStream();
|
|
ObjectOutputStream oos = new ObjectOutputStream(baos);
|
|
oos.writeObject(attribute);
|
|
oos.flush();
|
|
|
|
byte[] data = baos.toByteArray();
|
|
|
|
ByteArrayInputStream bais = new ByteArrayInputStream(data);
|
|
ObjectInputStream ois = new ObjectInputStream(bais);
|
|
Attribute result = (Attribute) ois.readObject();
|
|
|
|
return result;
|
|
}
|
|
|
|
static void testSerializationCycle(Attribute attribute) throws Exception {
|
|
Attribute result = doSerializationCycle(attribute);
|
|
if (result != attribute) {
|
|
throw new RuntimeException("attribute changed identity during serialization/deserialization");
|
|
}
|
|
}
|
|
|
|
private static class FakeAttribute extends Attribute {
|
|
|
|
// This LANGUAGE attribute should never be confused with the
|
|
// Attribute.LANGUAGE attribute. However, we don't override
|
|
// readResolve here, so that deserialization goes
|
|
// to Attribute. Attribute has to catch this problem and reject
|
|
// the fake attribute.
|
|
static final FakeAttribute LANGUAGE = new FakeAttribute("language");
|
|
|
|
FakeAttribute(String name) {
|
|
super(name);
|
|
}
|
|
}
|
|
}
|