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/*
* Copyright (c) 2022, 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 8282080
* @summary Check that serializable lambdas referring to j.l.Object methods work.
* @compile SerializableObjectMethods.java
* @run main SerializableObjectMethods
*/
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public class SerializableObjectMethods {
interface I1 extends Serializable {}
interface I2 extends I1 {
@Override
public int hashCode();
}
interface F<T, R> extends Serializable {
R apply(T t);
}
public static void main(String[] args) throws Exception {
new SerializableObjectMethods().run();
}
void run() throws IOException, ClassNotFoundException {
saveLoad((F<I1, Integer>) I1::hashCode).apply(new I1() {});
saveLoad((F<I2, Integer>) I2::hashCode).apply(new I2() {});
}
<T, R> F<T, R> saveLoad(F<T, R> value) throws IOException, ClassNotFoundException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
try ( ObjectOutputStream oos = new ObjectOutputStream(out)) {
oos.writeObject(value);
}
try (ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(out.toByteArray()))) {
return (F<T, R>) ois.readObject();
}
}
}
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