# HG changeset patch
# User mchung
# Date 1496178713 25200
# Node ID 5be57bc0114787a7fda2a2724154021e5aeb3352
# Parent  03669efa77f51852f5301623cad4a2e1bb4fb9f6
8181148: Update the jdeps tool to list exported packages instead of just internal APIs
Reviewed-by: psandoz

diff -r 03669efa77f5 -r 5be57bc01147 make/src/classes/build/tools/listjdkinternals/ListJDKInternals.java
--- a/make/src/classes/build/tools/listjdkinternals/ListJDKInternals.java	Fri May 26 00:45:03 2017 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,195 +0,0 @@
-/*
- * 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.
- */
-
-package build.tools.listjdkinternals;
-
-import java.io.IOException;
-import java.io.OutputStream;
-import java.io.PrintStream;
-import java.io.UncheckedIOException;
-import java.lang.module.ModuleDescriptor;
-import java.lang.module.ModuleFinder;
-import java.lang.module.ModuleReference;
-import java.net.URI;
-import java.nio.file.FileSystem;
-import java.nio.file.FileSystems;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.nio.file.attribute.BasicFileAttributes;
-import java.time.LocalDateTime;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.jar.JarEntry;
-import java.util.jar.JarFile;
-import java.util.stream.Collectors;
-
-/**
- * Run this tool to generate the JDK internal APIs in the previous releases
- * including platform-specific internal APIs.
- */
-public class ListJDKInternals {
-    // Filter non-interesting JAR files
-    private final static List<String> excludes = Arrays.asList(
-        "deploy.jar",
-        "javaws.jar",
-        "plugin.jar",
-        "cldrdata.jar",
-        "localedata.jar"
-    );
-    private static void usage() {
-        System.out.println("ListJDKInternals [-o <outfile>] <javaHome> [<javaHome>]*");
-    }
-
-    private static final Set<String> EXPORTED_PACKAGES = new HashSet<>();
-
-    public static void main(String... args) throws IOException {
-        List<Path> paths = new ArrayList<>();
-        Path outFile = null;
-        int i=0;
-        while (i < args.length) {
-            String arg = args[i++];
-            if (arg.equals("-o")) {
-                outFile = Paths.get(args[i++]);
-            } else {
-                Path p = Paths.get(arg);
-                if (Files.notExists(p))
-                    throw new IllegalArgumentException(p + " not exist");
-                paths.add(p);
-            }
-        }
-        if (paths.isEmpty()) {
-            usage();
-            System.exit(1);
-        }
-
-        // Get the exported APIs from the current JDK releases
-        Path javaHome = Paths.get(System.getProperty("java.home"));
-        ModuleFinder.ofSystem().findAll()
-            .stream()
-            .map(ModuleReference::descriptor)
-            .filter(md -> !md.name().equals("jdk.unsupported"))
-            .map(ModuleDescriptor::exports)
-            .flatMap(Set::stream)
-            .filter(exp -> !exp.isQualified())
-            .map(ModuleDescriptor.Exports::source)
-            .forEach(EXPORTED_PACKAGES::add);
-
-        ListJDKInternals listJDKInternals = new ListJDKInternals(paths);
-        if (outFile != null) {
-            try (OutputStream out = Files.newOutputStream(outFile);
-                 PrintStream pw = new PrintStream(out)) {
-                listJDKInternals.write(pw);
-            }
-        } else {
-            listJDKInternals.write(System.out);
-        }
-    }
-
-    private final Set<String> packages = new HashSet<>();
-    ListJDKInternals(List<Path> dirs) throws IOException {
-        for (Path p : dirs) {
-            packages.addAll(list(p));
-        }
-    }
-
-    private void write(PrintStream pw) {
-        pw.println("# This file is auto-generated by ListJDKInternals tool on " +
-                   LocalDateTime.now().toString());
-        packages.stream().sorted()
-                .forEach(pw::println);
-    }
-
-    private Set<String> list(Path javaHome) throws IOException {
-        Path jrt = javaHome.resolve("lib").resolve("modules");
-        Path jre = javaHome.resolve("jre");
-
-        if (Files.exists(jrt)) {
-            return listModularRuntime(javaHome);
-        } else if (Files.exists(jre.resolve("lib").resolve("rt.jar"))) {
-            return listLegacyRuntime(javaHome);
-        }
-        throw new IllegalArgumentException("invalid " + javaHome);
-    }
-
-    private Set<String> listModularRuntime(Path javaHome) throws IOException {
-        Map<String, String> env = new HashMap<>();
-        env.put("java.home", javaHome.toString());
-        FileSystem fs = FileSystems.newFileSystem(URI.create("jrt:/"), env);
-        Path root = fs.getPath("packages");
-        return Files.walk(root, 1)
-                    .map(Path::getFileName)
-                    .map(Path::toString)
-                    .filter(pn -> !EXPORTED_PACKAGES.contains(pn))
-                    .collect(Collectors.toSet());
-    }
-
-    private Set<String> listLegacyRuntime(Path javaHome) throws IOException {
-        List<Path> dirs = new ArrayList<>();
-        Path jre = javaHome.resolve("jre");
-        Path lib = javaHome.resolve("lib");
-
-        dirs.add(jre.resolve("lib"));
-        dirs.add(jre.resolve("lib").resolve("ext"));
-        dirs.add(lib.resolve("tools.jar"));
-        dirs.add(lib.resolve("jconsole.jar"));
-        Set<String> packages = new HashSet<>();
-        for (Path d : dirs) {
-            Files.find(d, 1, (Path p, BasicFileAttributes attr)
-                    -> p.getFileName().toString().endsWith(".jar") &&
-                       !excludes.contains(p.getFileName().toString()))
-                .map(ListJDKInternals::walkJarFile)
-                .flatMap(Set::stream)
-                .filter(pn -> !EXPORTED_PACKAGES.contains(pn))
-                .forEach(packages::add);
-        }
-        return packages;
-    }
-
-    static Set<String> walkJarFile(Path jarfile) {
-        try (JarFile jf = new JarFile(jarfile.toFile())) {
-            return jf.stream()
-                     .map(JarEntry::getName)
-                     .filter(n -> n.endsWith(".class"))
-                     .map(ListJDKInternals::toPackage)
-                .collect(Collectors.toSet());
-        } catch (IOException e) {
-            throw new UncheckedIOException(e);
-        }
-    }
-
-    static String toPackage(String name) {
-        int i = name.lastIndexOf('/');
-        if (i < 0) {
-            System.err.format("Warning: unnamed package %s%n", name);
-        }
-        return i >= 0 ? name.substring(0, i).replace("/", ".") : "";
-    }
-}