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/* |
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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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/* |
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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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|
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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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|
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public class Ser { |
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public static void main(String[] args) throws Exception { |
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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_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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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} |
