appserver/tests/appserv-tests/devtests/web/servlet-3.0/servletContainerInitializerAddRestrictedServletContextListener/servlet/test/MyServlet.java

/*
 * 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
 */

package test;

import java.io.*;
import jakarta.servlet.*;
import jakarta.servlet.http.*;

public class MyServlet extends HttpServlet {

    protected void doGet(HttpServletRequest req, HttpServletResponse res)
            throws IOException, ServletException {
        ServletContext ctx = getServletContext();
        Object attrValue = ctx.getAttribute("testname");
        if (attrValue == null || !"testvalue".equals(attrValue)) {
            throw new ServletException("Missing ServletContext attribute");
        }

        // Check for ServletContext instance equality (see IT 10736)
        if (ctx != ctx.getAttribute("servletContextInstance")) {
            throw new ServletException("Different ServletContext instances");
        }
    }
}