| /* |
| * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
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| */ |
| |
| /** |
| * @test |
| * @bug 7198904 |
| * @summary Verify that cloned TreeMap gets new keyset |
| * @author david.buck@oracle.com |
| * @run main/othervm Clone |
| */ |
| |
| import java.util.TreeMap; |
| |
| public class Clone { |
| |
| public static void main(String[] args) throws Exception { |
| TreeMap<String,Object> m1 = new TreeMap<String,Object>(); |
| m1.put( "one", 1 ); |
| m1.keySet(); |
| TreeMap<String,Object> m2 = (TreeMap<String,Object>)m1.clone(); |
| m1.put( "two", 2 ); |
| m2.put( "three", 3 ); |
| // iterate over the clone (m2) and we should get "one" and "three" |
| for( final String key : m2.keySet() ) { |
| if( !"one".equals( key ) && !"three".equals( key ) ) { |
| throw new IllegalStateException( "Unexpected key: " + key ); |
| } |
| } |
| // iterate over the original (m1) and we should get "one" and "two" |
| for( final String key : m1.keySet() ) { |
| if( !"one".equals( key ) && !"two".equals( key ) ) { |
| throw new IllegalStateException( "Unexpected key: " + key ); |
| } |
| } |
| } |
| |
| } |