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This is the master POM file for Sun's Implementation of the JSF 1.2 Specification.
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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
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 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
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 * its licensees as provided above.  However, if you add GPL Version 2 code
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package com.sun.faces.scripting;

import javax.faces.application.NavigationHandler;
import javax.faces.context.FacesContext;
import javax.faces.FacesException;

/**
 * Proxy instance for a groovy-based NavigationHandlers.  This allows the NavigationHandler
 * to remain registered with the Application while picking up changes at runtime
 * from the associated groovy script.
 */
public class NavigationHandlerProxy extends NavigationHandler {


    private String scriptName;
    private NavigationHandler nvDelegate;

    // ------------------------------------------------------------ Constructors


    public NavigationHandlerProxy(String scriptName,
                                  NavigationHandler nvDelegate) {

        this.scriptName = scriptName;
        this.nvDelegate = nvDelegate;

    }


    // ------------------------------------------ Methods from NavigationHandler


    public void handleNavigation(FacesContext context,
                                 String fromAction,
                                 String outcome) {

        getGroovyDelegate().handleNavigation(context, fromAction, outcome);

    }


    // --------------------------------------------------------- Private Methods


    private NavigationHandler getGroovyDelegate() {

        try {
            return ((NavigationHandler) GroovyHelper.newInstance(scriptName,
                                                                 NavigationHandler.class,
                                                                 nvDelegate));
        } catch (Exception e) {
            throw new FacesException(e);
        }

    }
}