    /* ====================================================================
     * The Apache Software License, Version 1.1
     *
     * Copyright (c) 2000 The Apache Software Foundation.  All rights
     * reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, 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" 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 (INCLUDING, 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.  For more
     * information on the Apache Software Foundation, please see
     * <http://www.apache.org/>.
     *
     * Portions of this software are based upon public domain software
     * originally written at the National Center for Supercomputing Applications,
     * University of Illinois, Urbana-Champaign.
     */