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Lana Steuck
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@ -1,195 +0,0 @@
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/*
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* Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package build.tools.listjdkinternals;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.io.PrintStream;
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import java.io.UncheckedIOException;
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import java.lang.module.ModuleDescriptor;
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import java.lang.module.ModuleFinder;
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import java.lang.module.ModuleReference;
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import java.net.URI;
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import java.nio.file.FileSystem;
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import java.nio.file.FileSystems;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.nio.file.attribute.BasicFileAttributes;
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import java.time.LocalDateTime;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import java.util.jar.JarEntry;
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import java.util.jar.JarFile;
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import java.util.stream.Collectors;
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/**
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* Run this tool to generate the JDK internal APIs in the previous releases
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* including platform-specific internal APIs.
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*/
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public class ListJDKInternals {
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// Filter non-interesting JAR files
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private final static List<String> excludes = Arrays.asList(
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"deploy.jar",
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"javaws.jar",
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"plugin.jar",
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"cldrdata.jar",
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"localedata.jar"
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);
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private static void usage() {
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System.out.println("ListJDKInternals [-o <outfile>] <javaHome> [<javaHome>]*");
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}
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private static final Set<String> EXPORTED_PACKAGES = new HashSet<>();
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public static void main(String... args) throws IOException {
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List<Path> paths = new ArrayList<>();
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Path outFile = null;
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int i=0;
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while (i < args.length) {
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String arg = args[i++];
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if (arg.equals("-o")) {
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outFile = Paths.get(args[i++]);
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} else {
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Path p = Paths.get(arg);
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if (Files.notExists(p))
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throw new IllegalArgumentException(p + " not exist");
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paths.add(p);
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}
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}
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if (paths.isEmpty()) {
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usage();
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System.exit(1);
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}
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// Get the exported APIs from the current JDK releases
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Path javaHome = Paths.get(System.getProperty("java.home"));
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ModuleFinder.ofSystem().findAll()
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.stream()
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.map(ModuleReference::descriptor)
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.filter(md -> !md.name().equals("jdk.unsupported"))
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.map(ModuleDescriptor::exports)
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.flatMap(Set::stream)
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.filter(exp -> !exp.isQualified())
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.map(ModuleDescriptor.Exports::source)
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.forEach(EXPORTED_PACKAGES::add);
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ListJDKInternals listJDKInternals = new ListJDKInternals(paths);
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if (outFile != null) {
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try (OutputStream out = Files.newOutputStream(outFile);
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PrintStream pw = new PrintStream(out)) {
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listJDKInternals.write(pw);
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}
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} else {
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listJDKInternals.write(System.out);
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}
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}
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private final Set<String> packages = new HashSet<>();
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ListJDKInternals(List<Path> dirs) throws IOException {
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for (Path p : dirs) {
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packages.addAll(list(p));
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}
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}
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private void write(PrintStream pw) {
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pw.println("# This file is auto-generated by ListJDKInternals tool on " +
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LocalDateTime.now().toString());
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packages.stream().sorted()
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.forEach(pw::println);
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}
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private Set<String> list(Path javaHome) throws IOException {
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Path jrt = javaHome.resolve("lib").resolve("modules");
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Path jre = javaHome.resolve("jre");
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if (Files.exists(jrt)) {
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return listModularRuntime(javaHome);
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} else if (Files.exists(jre.resolve("lib").resolve("rt.jar"))) {
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return listLegacyRuntime(javaHome);
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}
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throw new IllegalArgumentException("invalid " + javaHome);
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}
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private Set<String> listModularRuntime(Path javaHome) throws IOException {
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Map<String, String> env = new HashMap<>();
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env.put("java.home", javaHome.toString());
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FileSystem fs = FileSystems.newFileSystem(URI.create("jrt:/"), env);
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Path root = fs.getPath("packages");
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return Files.walk(root, 1)
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.map(Path::getFileName)
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.map(Path::toString)
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.filter(pn -> !EXPORTED_PACKAGES.contains(pn))
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.collect(Collectors.toSet());
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}
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private Set<String> listLegacyRuntime(Path javaHome) throws IOException {
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List<Path> dirs = new ArrayList<>();
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Path jre = javaHome.resolve("jre");
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Path lib = javaHome.resolve("lib");
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dirs.add(jre.resolve("lib"));
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dirs.add(jre.resolve("lib").resolve("ext"));
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dirs.add(lib.resolve("tools.jar"));
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dirs.add(lib.resolve("jconsole.jar"));
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Set<String> packages = new HashSet<>();
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for (Path d : dirs) {
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Files.find(d, 1, (Path p, BasicFileAttributes attr)
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-> p.getFileName().toString().endsWith(".jar") &&
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!excludes.contains(p.getFileName().toString()))
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.map(ListJDKInternals::walkJarFile)
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.flatMap(Set::stream)
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.filter(pn -> !EXPORTED_PACKAGES.contains(pn))
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.forEach(packages::add);
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}
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return packages;
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}
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static Set<String> walkJarFile(Path jarfile) {
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try (JarFile jf = new JarFile(jarfile.toFile())) {
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return jf.stream()
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.map(JarEntry::getName)
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.filter(n -> n.endsWith(".class"))
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.map(ListJDKInternals::toPackage)
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.collect(Collectors.toSet());
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} catch (IOException e) {
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throw new UncheckedIOException(e);
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}
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}
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static String toPackage(String name) {
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int i = name.lastIndexOf('/');
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if (i < 0) {
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System.err.format("Warning: unnamed package %s%n", name);
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}
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return i >= 0 ? name.substring(0, i).replace("/", ".") : "";
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}
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}
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