73 lines
2.4 KiB
Java
73 lines
2.4 KiB
Java
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/*
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* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 8282080
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* @summary Check that serializable lambdas referring to j.l.Object methods work.
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* @compile SerializableObjectMethods.java
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* @run main SerializableObjectMethods
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*/
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.io.Serializable;
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public class SerializableObjectMethods {
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interface I1 extends Serializable {}
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interface I2 extends I1 {
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@Override
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public int hashCode();
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}
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interface F<T, R> extends Serializable {
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R apply(T t);
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}
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public static void main(String[] args) throws Exception {
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new SerializableObjectMethods().run();
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}
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void run() throws IOException, ClassNotFoundException {
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saveLoad((F<I1, Integer>) I1::hashCode).apply(new I1() {});
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saveLoad((F<I2, Integer>) I2::hashCode).apply(new I2() {});
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}
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<T, R> F<T, R> saveLoad(F<T, R> value) throws IOException, ClassNotFoundException {
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ByteArrayOutputStream out = new ByteArrayOutputStream();
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try ( ObjectOutputStream oos = new ObjectOutputStream(out)) {
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oos.writeObject(value);
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}
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try (ObjectInputStream ois = new ObjectInputStream(new ByteArrayInputStream(out.toByteArray()))) {
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return (F<T, R>) ois.readObject();
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}
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}
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}
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