jdk/test/java/util/AbstractMap/AbstractMapClone.java
author duke
Sat, 01 Dec 2007 00:00:00 +0000
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/*
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 * Copyright 2000 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 */
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/*
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 * @test
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 * @bug 4328748
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 * @summary AbstractMap's clone() method is implemented to
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 *  reset AbstractMap's private fields after super.clone()
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 *
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 * @author Konstantin Kladko
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 */
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import java.util.*;
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public class AbstractMapClone extends AbstractMap implements Cloneable {
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    private Map map = new HashMap();
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    public Set entrySet() {
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        return map.entrySet();
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    }
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    public Object put(Object key, Object value) {
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        return map.put(key, value);
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    }
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    public Object clone() {
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        AbstractMapClone clone = null;
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        try {
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        clone = (AbstractMapClone)super.clone();
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        } catch (CloneNotSupportedException e) {
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        }
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        clone.map = (Map)((HashMap)map).clone();
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        return clone;
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    }
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    public static void main(String[] args) {
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        AbstractMapClone m1 = new AbstractMapClone();
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        m1.put("1", "1");
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        Set k1 = m1.keySet();
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        AbstractMapClone m2 = (AbstractMapClone)m1.clone();
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        Set k2 = m2.keySet();
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        m2.put("2","2");
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        if (k1.equals(k2)) {
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            throw new RuntimeException("AbstractMap.clone() failed.");
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        }
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    }
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}