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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

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 * 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.

 *

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/**

 * @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 );

            }

        }

    }

}