/* ============================================================================                   The Apache Software License, Version 1.1 ============================================================================ Copyright (C) 1999-2002 The Apache Software Foundation. All rights reserved. Redistribution and use in source and binary forms, with or without modifica- tion, are permitted provided that the following conditions are met: 1. Redistributions of  source code must  retain the above copyright  notice,    this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice,    this list of conditions and the following disclaimer in the documentation    and/or other materials provided with the distribution. 3. The end-user documentation included with the redistribution, if any, must    include  the following  acknowledgment:  "This product includes  software    developed  by the  Apache Software Foundation  (http://www.apache.org/)."    Alternately, this  acknowledgment may  appear in the software itself,  if    and wherever such third-party acknowledgments normally appear. 4. The names "Apache Cocoon" and  "Apache Software Foundation" must  not  be    used to  endorse or promote  products derived from  this software without    prior written permission. For written permission, please contact    apache@apache.org. 5. Products  derived from this software may not  be called "Apache", nor may    "Apache" appear  in their name,  without prior written permission  of the    Apache Software Foundation. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS  FOR A PARTICULAR  PURPOSE ARE  DISCLAIMED.  IN NO  EVENT SHALL  THE APACHE SOFTWARE  FOUNDATION  OR ITS CONTRIBUTORS  BE LIABLE FOR  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  EXEMPLARY, OR CONSEQUENTIAL  DAMAGES (INCLU- DING, BUT NOT LIMITED TO, PROCUREMENT  OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR  PROFITS; OR BUSINESS  INTERRUPTION)  HOWEVER CAUSED AND ON ANY  THEORY OF LIABILITY,  WHETHER  IN CONTRACT,  STRICT LIABILITY,  OR TORT (INCLUDING  NEGLIGENCE OR  OTHERWISE) ARISING IN  ANY WAY OUT OF THE  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. This software  consists of voluntary contributions made  by many individuals on  behalf of the Apache Software  Foundation and was  originally created by Stefano Mazzocchi  <stefano@apache.org>. For more  information on the Apache Software Foundation, please see <http://www.apache.org/>.*/package com.struts2.framework.util;import java.util.Map;/** * Extended Version of {@link java.util.HashMap}. * * @author <a href="mailto:haul@apache.org">Christian Haul</a> * @version CVS $Id: HashMap.java,v 1.4 2002/02/22 07:03:57 cziegeler Exp $ */public class HashMap extends java.util.HashMap {    public HashMap () {    super();    }    public HashMap ( int initialCapacity ) {    super(initialCapacity);    }    public HashMap ( int initialCapacity, float loadFactor ) {    super(initialCapacity, loadFactor);    }    public HashMap ( Map t) {    super(t);    }    /**     * Get method extended by default object to be returned when key     * is not found.     *     * @param key key to look up     * @param _default default value to return if key is not found     * @return value that is associated with key     */    public Object get ( Object key, Object _default ) {    if (this.containsKey(key)) {        return this.get(key);    } else {        return _default;    }    }}