| /* |
| * Copyright (c) 2010, 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.IOException; |
| |
| import jakarta.servlet.*; |
| import jakarta.servlet.annotation.WebFilter; |
| |
| @WebFilter(filterName="testFilter", urlPatterns="/*") |
| public class TestFilter implements Filter { |
| private static boolean init = false; |
| |
| public void init(FilterConfig config) throws ServletException { |
| System.out.println("Calling TestFilter.init()"); |
| synchronized(TestFilter.class) { |
| if (init) { |
| throw new IllegalStateException("TestFilter already init"); |
| } |
| |
| init = true; |
| } |
| |
| try { |
| Thread.sleep(4000); |
| } catch (InterruptedException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| public void destroy() { |
| } |
| |
| public void doFilter(ServletRequest req, ServletResponse res, |
| FilterChain chain) throws IOException, ServletException { |
| } |
| } |