// ========================================================================
// Copyright (c) 1996-2009 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
// The Eclipse Public License is available at 
// http://www.eclipse.org/legal/epl-v10.html
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
// You may elect to redistribute this code under either of these licenses. 
// ========================================================================

package com.acme;

import java.io.File;
import java.io.IOException;
import java.io.PrintStream;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Calendar;
import java.util.GregorianCalendar;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;


/* ------------------------------------------------------------ */
/** Dump Servlet Request.
 * 
 */
public class LoginServlet extends HttpServlet
{
    private static final Logger LOG = Log.getLogger(SecureModeServlet.class);

    /* ------------------------------------------------------------ */
    @Override
    public void init(ServletConfig config) throws ServletException
    {
    	super.init(config);
    }

    /* ------------------------------------------------------------ */
    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
    {
        doGet(request, response);
    }

    /* ------------------------------------------------------------ */
    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
    {
         
        response.setContentType("text/html");
        ServletOutputStream out = response.getOutputStream();
        out.println("<html>");
        out.println("<br/>Before getUserPrincipal="+request.getUserPrincipal());
        out.println("<br/>Before getRemoteUser="+request.getRemoteUser());
        String param = request.getParameter("action");

        if ("login".equals(param))
        {
              request.login("jetty", "jetty");
        }
        else if ("logout".equals(param))
        {
             request.logout();
        }
        else if ("wrong".equals(param))
        {
             request.login("jetty", "123");
        }  

        out.println("<br/>After getUserPrincipal="+request.getUserPrincipal());
        out.println("<br/>After getRemoteUser="+request.getRemoteUser());
        out.println("</html>");
        out.flush();
    }
}

//
//  ========================================================================
//  Copyright (c) 1995-2012 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package com.acme;

import java.io.File;
import java.io.IOException;
import java.io.PrintStream;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Calendar;
import java.util.GregorianCalendar;

import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;


/* ------------------------------------------------------------ */
/** Dump Servlet Request.
 * 
 */
public class LoginServlet extends HttpServlet
{
    private static final Logger LOG = Log.getLogger(SecureModeServlet.class);

    /* ------------------------------------------------------------ */
    @Override
    public void init(ServletConfig config) throws ServletException
    {
    	super.init(config);
    }

    /* ------------------------------------------------------------ */
    @Override
    public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
    {
        doGet(request, response);
    }

    /* ------------------------------------------------------------ */
    @Override
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
    {
         
        response.setContentType("text/html");
        ServletOutputStream out = response.getOutputStream();
        out.println("<html>");
        out.println("<br/>Before getUserPrincipal="+request.getUserPrincipal());
        out.println("<br/>Before getRemoteUser="+request.getRemoteUser());
        String param = request.getParameter("action");

        if ("login".equals(param))
        {
              request.login("jetty", "jetty");
        }
        else if ("logout".equals(param))
        {
             request.logout();
        }
        else if ("wrong".equals(param))
        {
             request.login("jetty", "123");
        }  

        out.println("<br/>After getUserPrincipal="+request.getUserPrincipal());
        out.println("<br/>After getRemoteUser="+request.getRemoteUser());
        out.println("</html>");
        out.flush();
    }
}

Fix license header