JDK 17 jdk.compiler.jmod is the JMOD file for JDK 17 Compiler tool, which can be invoked by the "javac" command.

JDK 17 Compiler tool compiled class files are stored in \fyicenter\jdk-17.0.5\jmods\jdk.compiler.jmod.

JDK 17 Compiler tool compiled class files are also linked and stored in the \fyicenter\jdk-17.0.5\lib\modules JImage file.

JDK 17 Compiler source code files are stored in \fyicenter\jdk-17.0.5\lib\src.zip\jdk.compiler.

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

⏎ com/sun/tools/sjavac/server/SjavacServer.java

/*
 * Copyright (c) 2011, 2016, 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.sjavac.server;

import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;
import java.util.concurrent.atomic.AtomicBoolean;

import com.sun.tools.javac.main.Main;
import com.sun.tools.javac.main.Main.Result;
import com.sun.tools.sjavac.Log;
import com.sun.tools.sjavac.Util;
import com.sun.tools.sjavac.client.PortFileInaccessibleException;
import com.sun.tools.sjavac.comp.PooledSjavac;
import com.sun.tools.sjavac.comp.SjavacImpl;

/**
 * The JavacServer class contains methods both to setup a server that responds to requests and methods to connect to this server.
 *
 *  <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 SjavacServer implements Terminable {

    // Prefix of line containing return code.
    public static final String LINE_TYPE_RC = "RC";

    private final String portfilename;
    private final int poolsize;
    private final int keepalive;

    // The secret cookie shared between server and client through the port file.
    // Used to prevent clients from believing that they are communicating with
    // an old server when a new server has started and reused the same port as
    // an old server.
    private final long myCookie;

    // Accumulated build time, not counting idle time, used for logging purposes
    private long totalBuildTime;

    // The sjavac implementation to delegate requests to
    Sjavac sjavac;

    private ServerSocket serverSocket;

    private PortFile portFile;
    private PortFileMonitor portFileMonitor;

    // Set to false break accept loop
    final AtomicBoolean keepAcceptingRequests = new AtomicBoolean();

    // For the client, all port files fetched, one per started javac server.
    // Though usually only one javac server is started by a client.
    private static Map<String, PortFile> allPortFiles;

    public SjavacServer(String settings) throws FileNotFoundException {
        this(Util.extractStringOption("portfile", settings),
             Util.extractIntOption("poolsize", settings, Runtime.getRuntime().availableProcessors()),
             Util.extractIntOption("keepalive", settings, 120));
    }

    public SjavacServer(String portfilename,
                        int poolsize,
                        int keepalive)
                                throws FileNotFoundException {
        this.portfilename = portfilename;
        this.poolsize = poolsize;
        this.keepalive = keepalive;
        this.myCookie = new Random().nextLong();
    }


    /**
     * Acquire the port file. Synchronized since several threads inside an smart javac wrapper client acquires the same port file at the same time.
     */
    public static synchronized PortFile getPortFile(String filename) {
        if (allPortFiles == null) {
            allPortFiles = new HashMap<>();
        }
        PortFile pf = allPortFiles.get(filename);

        // Port file known. Does it still exist?
        if (pf != null) {
            try {
                if (!pf.exists())
                    pf = null;
            } catch (IOException ioex) {
                ioex.printStackTrace();
            }
        }

        if (pf == null) {
            pf = new PortFile(filename);
            allPortFiles.put(filename, pf);
        }
        return pf;
    }

    /**
     * Get the cookie used for this server.
     */
    long getCookie() {
        return myCookie;
    }

    /**
     * Get the port used for this server.
     */
    int getPort() {
        return serverSocket.getLocalPort();
    }

    /**
     * Sum up the total build time for this javac server.
     */
    public void addBuildTime(long inc) {
        totalBuildTime += inc;
    }

    /**
     * Start a server using a settings string. Typically: "--startserver:portfile=/tmp/myserver,poolsize=3" and the string "portfile=/tmp/myserver,poolsize=3"
     * is sent as the settings parameter. Returns 0 on success, -1 on failure.
     */
    public int startServer() throws IOException, InterruptedException {
        long serverStart = System.currentTimeMillis();

        // The port file is locked and the server port and cookie is written into it.
        portFile = getPortFile(portfilename);

        synchronized (portFile) {
            portFile.lock();
            portFile.getValues();
            if (portFile.containsPortInfo()) {
                Log.debug("Javac server not started because portfile exists!");
                portFile.unlock();
                return Result.ERROR.exitCode;
            }

            //           .-----------.   .--------.   .------.
            // socket -->| IdleReset |-->| Pooled |-->| Impl |--> javac
            //           '-----------'   '--------'   '------'
            sjavac = new SjavacImpl();
            sjavac = new PooledSjavac(sjavac, poolsize);
            sjavac = new IdleResetSjavac(sjavac,
                                         this,
                                         keepalive * 1000);

            serverSocket = new ServerSocket();
            InetAddress localhost = InetAddress.getByName(null);
            serverSocket.bind(new InetSocketAddress(localhost, 0));

            // At this point the server accepts connections, so it is  now safe
            // to publish the port / cookie information
            portFile.setValues(getPort(), getCookie());
            portFile.unlock();
        }

        portFileMonitor = new PortFileMonitor(portFile, this);
        portFileMonitor.start();

        Log.debug("Sjavac server started. Accepting connections...");
        Log.debug("    port: " + getPort());
        Log.debug("    time: " + new java.util.Date());
        Log.debug("    poolsize: " + poolsize);


        keepAcceptingRequests.set(true);
        do {
            try {
                Socket socket = serverSocket.accept();
                new RequestHandler(socket, sjavac).start();
            } catch (SocketException se) {
                // Caused by serverSocket.close() and indicates shutdown
            }
        } while (keepAcceptingRequests.get());

        Log.debug("Shutting down.");

        // No more connections accepted. If any client managed to connect after
        // the accept() was interrupted but before the server socket is closed
        // here, any attempt to read or write to the socket will result in an
        // IOException on the client side.

        long realTime = System.currentTimeMillis() - serverStart;
        Log.debug("Total wall clock time " + realTime + "ms build time " + totalBuildTime + "ms");

        // Shut down
        sjavac.shutdown();

        return Result.OK.exitCode;
    }

    @Override
    public void shutdown(String quitMsg) {
        if (!keepAcceptingRequests.compareAndSet(true, false)) {
            // Already stopped, no need to shut down again
            return;
        }

        Log.debug("Quitting: " + quitMsg);

        portFileMonitor.shutdown(); // No longer any need to monitor port file

        // Unpublish port before shutting down socket to minimize the number of
        // failed connection attempts
        try {
            portFile.delete();
        } catch (IOException | InterruptedException e) {
            Log.error(e);
        }
        try {
            serverSocket.close();
        } catch (IOException e) {
            Log.error(e);
        }
    }
}

⏎ com/sun/tools/sjavac/server/SjavacServer.java

Or download all of them as a single archive file:

File name: jdk.compiler-17.0.5-src.zip
File size: 1450209 bytes
Release date: 2022-09-13
Download 

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⇑⇑ FAQ for JDK (Java Development Kit) 17