|  | /* | 
|  | * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved. | 
|  | * | 
|  | * This program and the accompanying materials are made available under the | 
|  | * terms of the Eclipse Public License v. 2.0, which is available at | 
|  | * http://www.eclipse.org/legal/epl-2.0. | 
|  | * | 
|  | * This Source Code may also be made available under the following Secondary | 
|  | * Licenses when the conditions for such availability set forth in the | 
|  | * Eclipse Public License v. 2.0 are satisfied: GNU General Public License, | 
|  | * version 2 with the GNU Classpath Exception, which is available at | 
|  | * https://www.gnu.org/software/classpath/license.html. | 
|  | * | 
|  | * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 | 
|  | */ | 
|  |  | 
|  | import java.io.*; | 
|  | import jakarta.servlet.*; | 
|  | import jakarta.servlet.http.*; | 
|  |  | 
|  | public class TestServlet extends HttpServlet { | 
|  |  | 
|  | public void doGet(HttpServletRequest req, HttpServletResponse res) | 
|  | throws IOException, ServletException { | 
|  | if (!"VALUE".equals(req.getAttribute("ATTR"))) { | 
|  | throw new ServletException("Missing request attributes"); | 
|  | } else { | 
|  | res.getWriter().print(true); | 
|  | } | 
|  | } | 
|  | } | 
|  |  |