JDK 11 jdk.compiler.jmod - Compiler Tool

JDK 11 jdk.compiler.jmod is the JMOD file for JDK 11 Compiler tool, which can be invoked by the "javac" command.

JDK 11 Compiler tool compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\jdk.compiler.jmod.

JDK 11 Compiler tool compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Compiler source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\jdk.compiler.

You can click and view the content of each source code file in the list below.

✍: FYIcenter

com/sun/tools/javac/platform/JDKPlatformProvider.java

/*
 * Copyright (c) 2014, 2018, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package com.sun.tools.javac.platform;

import java.io.IOException;
import java.io.PrintWriter;
import java.net.URI;
import java.nio.charset.Charset;
import java.nio.file.DirectoryStream;
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.ProviderNotFoundException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.EnumSet;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Set;
import java.util.TreeSet;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import javax.annotation.processing.Processor;
import javax.tools.ForwardingJavaFileObject;
import javax.tools.JavaFileManager;
import javax.tools.JavaFileManager.Location;
import javax.tools.JavaFileObject;
import javax.tools.JavaFileObject.Kind;
import javax.tools.StandardJavaFileManager;
import javax.tools.StandardLocation;

import com.sun.source.util.Plugin;
import com.sun.tools.javac.file.CacheFSInfo;
import com.sun.tools.javac.file.JavacFileManager;
import com.sun.tools.javac.jvm.Target;
import com.sun.tools.javac.util.Context;
import com.sun.tools.javac.util.Log;
import com.sun.tools.javac.util.StringUtils;

/** PlatformProvider for JDK N.
 *
 *  <p><b>This is NOT part of any supported API.
 *  If you write code that depends on this, you do so at your own risk.
 *  This code and its internal interfaces are subject to change or
 *  deletion without notice.</b>
 */
public class JDKPlatformProvider implements PlatformProvider {

    @Override
    public Iterable<String> getSupportedPlatformNames() {
        return SUPPORTED_JAVA_PLATFORM_VERSIONS;
    }

    @Override
    public PlatformDescription getPlatform(String platformName, String options) {
        return new PlatformDescriptionImpl(platformName);
    }

    private static final String[] symbolFileLocation = { "lib", "ct.sym" };

    private static final Set<String> SUPPORTED_JAVA_PLATFORM_VERSIONS;
    public static final Comparator<String> NUMERICAL_COMPARATOR = (s1, s2) -> {
        int i1;
        try {
            i1 = Integer.parseInt(s1);
        } catch (NumberFormatException ex) {
            i1 = Integer.MAX_VALUE;
        }
        int i2;
        try {
            i2 = Integer.parseInt(s2);
        } catch (NumberFormatException ex) {
            i2 = Integer.MAX_VALUE;
        }
        return i1 != i2 ? i1 - i2 : s1.compareTo(s2);
    };

    static {
        SUPPORTED_JAVA_PLATFORM_VERSIONS = new TreeSet<>(NUMERICAL_COMPARATOR);
        Path ctSymFile = findCtSym();
        if (Files.exists(ctSymFile)) {
            try (FileSystem fs = FileSystems.newFileSystem(ctSymFile, null);
                 DirectoryStream<Path> dir =
                         Files.newDirectoryStream(fs.getRootDirectories().iterator().next())) {
                for (Path section : dir) {
                    if (section.getFileName().toString().contains("-"))
                        continue;
                    for (char ver : section.getFileName().toString().toCharArray()) {
                        String verString = Character.toString(ver);
                        Target t = Target.lookup("" + Integer.parseInt(verString, 16));

                        if (t != null) {
                            SUPPORTED_JAVA_PLATFORM_VERSIONS.add(targetNumericVersion(t));
                        }
                    }
                }
            } catch (IOException | ProviderNotFoundException ex) {
            }
        }
    }

    private static String targetNumericVersion(Target target) {
        return Integer.toString(target.ordinal() - Target.JDK1_1.ordinal() + 1);
    }

    static class PlatformDescriptionImpl implements PlatformDescription {

        private final Map<Path, FileSystem> ctSym2FileSystem = new HashMap<>();
        private final String sourceVersion;
        private final String ctSymVersion;

        PlatformDescriptionImpl(String sourceVersion) {
            this.sourceVersion = sourceVersion;
            this.ctSymVersion =
                    StringUtils.toUpperCase(Integer.toHexString(Integer.parseInt(sourceVersion)));
        }

        @Override
        public JavaFileManager getFileManager() {
            Context context = new Context();
            PrintWriter pw = new PrintWriter(System.err, true);
            context.put(Log.errKey, pw);
            CacheFSInfo.preRegister(context);
            JavacFileManager fm = new JavacFileManager(context, true, null) {
                @Override
                public boolean hasLocation(Location location) {
                    return super.hasExplicitLocation(location);
                }

                @Override
                public JavaFileObject getJavaFileForInput(Location location, String className,
                                                          Kind kind) throws IOException {
                    if (kind == Kind.CLASS) {
                        String fileName = className.replace('.', '/');
                        JavaFileObject result =
                                (JavaFileObject) getFileForInput(location,
                                                                 "",
                                                                 fileName + ".sig");

                        if (result == null) {
                            //in jrt://, the classfile may have the .class extension:
                            result = (JavaFileObject) getFileForInput(location,
                                                                      "",
                                                                      fileName + ".class");
                        }

                        if (result != null) {
                            return new SigJavaFileObject(result);
                        } else {
                            return null;
                        }
                    }

                    return super.getJavaFileForInput(location, className, kind);
                }

                @Override
                public Iterable<JavaFileObject> list(Location location,
                                                     String packageName,
                                                     Set<Kind> kinds,
                                                     boolean recurse) throws IOException {
                    Set<Kind> enhancedKinds = EnumSet.copyOf(kinds);

                    enhancedKinds.add(Kind.OTHER);

                    Iterable<JavaFileObject> listed = super.list(location, packageName,
                                                                 enhancedKinds, recurse);

                    return () -> new Iterator<JavaFileObject>() {
                        private final Iterator<JavaFileObject> original = listed.iterator();
                        private JavaFileObject next;
                        @Override
                        public boolean hasNext() {
                            if (next == null) {
                                while (original.hasNext()) {
                                    JavaFileObject fo = original.next();

                                    if (fo.getKind() == Kind.OTHER &&
                                        fo.getName().endsWith(".sig")) {
                                        next = new SigJavaFileObject(fo);
                                        break;
                                    }

                                    if (kinds.contains(fo.getKind())) {
                                        next = fo;
                                        break;
                                    }
                                }
                            }
                            return next != null;
                        }

                        @Override
                        public JavaFileObject next() {
                            if (!hasNext())
                                throw new NoSuchElementException();
                            JavaFileObject result = next;
                            next = null;
                            return result;
                        }

                    };
                }

                @Override
                public String inferBinaryName(Location location, JavaFileObject file) {
                    if (file instanceof SigJavaFileObject) {
                        file = ((SigJavaFileObject) file).getDelegate();
                    }
                    return super.inferBinaryName(location, file);
                }

            };

            Path file = findCtSym();
            // file == ${jdk.home}/lib/ct.sym
            if (Files.exists(file)) {
                try {
                    FileSystem fs = ctSym2FileSystem.get(file);
                    if (fs == null) {
                        ctSym2FileSystem.put(file, fs = FileSystems.newFileSystem(file, null));
                    }

                    List<Path> paths = new ArrayList<>();
                    Path modules = fs.getPath(ctSymVersion + "-modules");
                    Path root = fs.getRootDirectories().iterator().next();
                    boolean pathsSet = false;
                    Charset utf8 = Charset.forName("UTF-8");

                    try (DirectoryStream<Path> dir = Files.newDirectoryStream(root)) {
                        for (Path section : dir) {
                            if (section.getFileName().toString().contains(ctSymVersion) &&
                                !section.getFileName().toString().contains("-")) {
                                Path systemModules = section.resolve("system-modules");

                                if (Files.isRegularFile(systemModules)) {
                                    fm.handleOption("--system", Arrays.asList("none").iterator());

                                    Path jrtModules =
                                            FileSystems.getFileSystem(URI.create("jrt:/"))
                                                       .getPath("modules");
                                    try (Stream<String> lines =
                                            Files.lines(systemModules, utf8)) {
                                        lines.map(line -> jrtModules.resolve(line))
                                             .filter(mod -> Files.exists(mod))
                                             .forEach(mod -> setModule(fm, mod));
                                    }
                                    pathsSet = true;
                                } else {
                                    paths.add(section);
                                }
                            }
                        }
                    }

                    if (Files.isDirectory(modules)) {
                        try (DirectoryStream<Path> dir = Files.newDirectoryStream(modules)) {
                            fm.handleOption("--system", Arrays.asList("none").iterator());

                            for (Path module : dir) {
                                fm.setLocationForModule(StandardLocation.SYSTEM_MODULES,
                                                        module.getFileName().toString(),
                                                        Stream.concat(paths.stream(),
                                                                      Stream.of(module))
                                  .collect(Collectors.toList()));
                            }
                        }
                    } else if (!pathsSet) {
                        fm.setLocationFromPaths(StandardLocation.PLATFORM_CLASS_PATH, paths);
                    }

                    return fm;
                } catch (IOException ex) {
                    throw new IllegalStateException(ex);
                }
            } else {
                throw new IllegalStateException("Cannot find ct.sym!");
            }
        }

        private static void setModule(StandardJavaFileManager fm, Path mod) {
            try {
                fm.setLocationForModule(StandardLocation.SYSTEM_MODULES,
                                        mod.getFileName().toString(),
                                        Collections.singleton(mod));
            } catch (IOException ex) {
                throw new IllegalStateException(ex);
            }
        }

        private static class SigJavaFileObject extends ForwardingJavaFileObject<JavaFileObject> {

            public SigJavaFileObject(JavaFileObject fileObject) {
                super(fileObject);
            }

            @Override
            public Kind getKind() {
                return Kind.CLASS;
            }

            @Override
            public boolean isNameCompatible(String simpleName, Kind kind) {
                return super.isNameCompatible(simpleName + ".sig", Kind.OTHER);
            }

            public JavaFileObject getDelegate() {
                return fileObject;
            }
        }

        @Override
        public String getSourceVersion() {
            return sourceVersion;
        }

        @Override
        public String getTargetVersion() {
            return sourceVersion;
        }

        @Override
        public List<PluginInfo<Processor>> getAnnotationProcessors() {
            return Collections.emptyList();
        }

        @Override
        public List<PluginInfo<Plugin>> getPlugins() {
            return Collections.emptyList();
        }

        @Override
        public List<String> getAdditionalOptions() {
            return Collections.emptyList();
        }

        @Override
        public void close() throws IOException {
            for (FileSystem fs : ctSym2FileSystem.values()) {
                fs.close();
            }
            ctSym2FileSystem.clear();
        }

    }

    static Path findCtSym() {
        String javaHome = System.getProperty("java.home");
        Path file = Paths.get(javaHome);
        // file == ${jdk.home}
        for (String name : symbolFileLocation)
            file = file.resolve(name);
        return file;
    }

}

com/sun/tools/javac/platform/JDKPlatformProvider.java

 

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