code: // from gee.cs.oswego.edu/home/jsr166/jsr166
  
  package jsr166tests.jtreg.util.HashMap;
  
  /*
   * Copyright 2002 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
   * CA 95054 USA or visit www.sun.com if you need additional information or
   * have any questions.
   */
  
  /**
   * @test
   * @bug 4627516
   * @summary HashMap.Entry.setValue() returns new value (as opposed to old)
   * @author jbloch
   */
  
  import java.util.*;
  
  public class SetValue {
      static final String key      = "key";
      static final String oldValue = "old";
      static final String newValue = "new";
  
      public static void main(String args[]) throws Exception {
          Map m = new HashMap();
          m.put(key, oldValue);
          Map.Entry e = (Map.Entry) m.entrySet().iterator().next();
          Object returnVal = e.setValue(newValue);
          if (!returnVal.equals(oldValue))
              throw new RuntimeException("Return value: " + returnVal);
      }
  }
  