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   /*
    * Copyright 2015 The Netty Project
    *
    * The Netty Project licenses this file to you under the Apache License,
    * version 2.0 (the "License"); you may not use this file except in compliance
    * with the License. You may obtain a copy of the License at:
    *
    *   https://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
   * License for the specific language governing permissions and limitations
   * under the License.
   */
  
  package io.netty.example.http2.tiles;
  
  import io.netty.channel.EventLoopGroup;
  import io.netty.channel.nio.NioEventLoopGroup;
  
  /**
   * <p>
   * Launches both Http and Http2 servers using Netty to display a set of images
   * and simulate latency. It is a Netty version of the <a
   * href="https://http2.golang.org/gophertiles?latency=0"> Go lang HTTP2 tiles
   * demo</a>.
   * </p>
   * <p>
   * Please note that if you intent to use the JDK provider for SSL, you MUST use JDK 1.8.
   * Previous JDK versions don't have any cipher suite that is suitable for use with HTTP/2.
   * The associated ALPN library for your JDK version can be found here:
   * https://eclipse.org/jetty/documentation/current/alpn-chapter.html#alpn-versions.
   * Alternatively, you can use the OpenSsl provider. Please make sure that you run OpenSsl
   * version 1.0.2 or greater.
   * </p>
   */
  public final class Launcher {
  
      public static void main(String[] args) {
          EventLoopGroup group = new NioEventLoopGroup();
          Http2Server http2 = new Http2Server(group);
          HttpServer http = new HttpServer(group);
          try {
              http2.start();
              System.err.println("Open your web browser and navigate to " + "http://" + Html.IP + ":" + HttpServer.PORT);
              http.start().sync();
          } catch (Exception e) {
              e.printStackTrace();
          } finally {
              group.shutdownGracefully();
          }
      }
  }