73 lines
2.3 KiB
Java
73 lines
2.3 KiB
Java
/*
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* Copyright (c) 2000, 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 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.AbstractMap;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Set;
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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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final AbstractMapClone clone;
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try {
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clone = (AbstractMapClone)super.clone();
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} catch (CloneNotSupportedException e) {
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throw new AssertionError(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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}
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