101 lines
4.0 KiB
Java
101 lines
4.0 KiB
Java
/*
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* Copyright (c) 1999, 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 4190323
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* @summary EMPTY_SET, EMPTY_LIST, and the collections returned by
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* nCopies and singleton were spec'd to be serializable, but weren't.
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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.ObjectInputStream;
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import java.io.ObjectOutputStream;
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import java.util.Collections;
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import java.util.List;
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import java.util.Set;
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public class Ser {
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public static void main(String[] args) throws Exception {
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try {
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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ObjectOutputStream out = new ObjectOutputStream(bos);
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out.writeObject(Collections.EMPTY_SET);
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out.flush();
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ObjectInputStream in = new ObjectInputStream(
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new ByteArrayInputStream(bos.toByteArray()));
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if (!Collections.EMPTY_SET.equals(in.readObject()))
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throw new RuntimeException("empty set Ser/Deser failure.");
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} catch (Exception e) {
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throw new RuntimeException("Failed to serialize empty set:" + e);
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}
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try {
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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ObjectOutputStream out = new ObjectOutputStream(bos);
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out.writeObject(Collections.EMPTY_LIST);
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out.flush();
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ObjectInputStream in = new ObjectInputStream(
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new ByteArrayInputStream(bos.toByteArray()));
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if (!Collections.EMPTY_LIST.equals(in.readObject()))
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throw new RuntimeException("empty list Ser/Deser failure.");
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} catch (Exception e) {
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throw new RuntimeException("Failed to serialize empty list:" + e);
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}
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try {
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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ObjectOutputStream out = new ObjectOutputStream(bos);
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Set gumby = Collections.singleton("gumby");
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out.writeObject(gumby);
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out.flush();
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ObjectInputStream in = new ObjectInputStream(
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new ByteArrayInputStream(bos.toByteArray()));
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if (!gumby.equals(in.readObject()))
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throw new RuntimeException("Singleton Ser/Deser failure.");
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} catch (Exception e) {
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throw new RuntimeException("Failed to serialize singleton:" + e);
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}
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try {
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ByteArrayOutputStream bos = new ByteArrayOutputStream();
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ObjectOutputStream out = new ObjectOutputStream(bos);
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List gumbies = Collections.nCopies(50, "gumby");
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out.writeObject(gumbies);
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out.flush();
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ObjectInputStream in = new ObjectInputStream(
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new ByteArrayInputStream(bos.toByteArray()));
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if (!gumbies.equals(in.readObject()))
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throw new RuntimeException("nCopies Ser/Deser failure.");
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} catch (Exception e) {
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throw new RuntimeException("Failed to serialize nCopies:" + e);
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}
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}
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}
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