| /* |
| * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * This application is meant to be run to create a classlist file representing |
| * common use. |
| * |
| * The classlist is produced by adding -XX:DumpLoadedClassList=classlist |
| */ |
| package build.tools.classlist; |
| |
| import java.net.InetAddress; |
| import java.time.LocalDateTime; |
| import java.time.ZoneId; |
| import java.time.format.DateTimeFormatter; |
| import java.util.stream.Stream; |
| import java.util.logging.*; |
| import java.util.Arrays; |
| import java.util.Date; |
| import java.util.List; |
| import java.util.Locale; |
| import java.text.DateFormat; |
| |
| import static java.util.stream.Collectors.*; |
| |
| /** |
| * This class is used to generate a classlist during build. Intent |
| * is to touch a reasonable amount of JDK classes that are commonly |
| * loaded and used early. |
| */ |
| public class HelloClasslist { |
| |
| private static final Logger LOGGER = Logger.getLogger("Hello"); |
| |
| public static void main(String ... args) { |
| |
| List<String> strings = Arrays.asList("Hello", "World!", "From: ", |
| InetAddress.getLoopbackAddress().toString()); |
| |
| String helloWorld = strings.parallelStream() |
| .map(s -> s.toLowerCase(Locale.ROOT)) |
| .collect(joining(",")); |
| |
| Stream.of(helloWorld.split(",")) |
| .forEach(System.out::println); |
| |
| String newDate = DateTimeFormatter.ISO_LOCAL_DATE_TIME.format( |
| LocalDateTime.now(ZoneId.of("GMT"))); |
| |
| String oldDate = String.format("%s%n", |
| DateFormat.getDateInstance(DateFormat.DEFAULT, Locale.ROOT) |
| .format(new Date())); |
| |
| LOGGER.log(Level.INFO, "New Date: " + newDate + " - old: " + oldDate); |
| } |
| |
| } |