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7198904: (alt-rt) TreeMap.clone is broken

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Test case for cr7198904. Issue only found in OracleJDK, but test case is valid for OpenJDK as well

Reviewed-by: mduigou, dholmes
This commit is contained in:
David Buck 2012-11-20 21:35:18 -08:00
parent 6dfea5e847
commit df3c665be3
1 changed files with 58 additions and 0 deletions
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jdk/test/java/util/TreeMap/Clone.java Normal file
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/*
* Copyright (c) 2012, 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
* questions.
*/
/**
* @test
* @bug 7198904
* @summary Verify that cloned TreeMap gets new keyset
* @author david.buck@oracle.com
* @run main/othervm Clone
* @run main/othervm -XX:+AggressiveOpts 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 );
}
}
}
}