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.

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

/*
 * Copyright (c) 2014, 2016, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */

package com.sun.tools.sjavac.server;

import com.sun.tools.javac.main.Main.Result;
import com.sun.tools.sjavac.Log;

import java.util.Timer;
import java.util.TimerTask;

/**
 * An sjavac implementation that keeps track of idleness and shuts down the
 * given Terminable upon idleness timeout.
 *
 * An idleness timeout kicks in {@code idleTimeout} milliseconds after the last
 * request is completed.
 *
 *  <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 IdleResetSjavac implements Sjavac {

    private final Sjavac delegate;
    private final Terminable toShutdown;
    private final Timer idlenessTimer = new Timer();
    private final long idleTimeout;
    private int outstandingCalls = 0;

    // Class invariant: idlenessTimerTask != null <-> idlenessTimerTask is scheduled
    private TimerTask idlenessTimerTask;

    public IdleResetSjavac(Sjavac delegate,
                           Terminable toShutdown,
                           long idleTimeout) {
        this.delegate = delegate;
        this.toShutdown = toShutdown;
        this.idleTimeout = idleTimeout;
        scheduleTimeout();
    }

    @Override
    public Result compile(String[] args) {
        startCall();
        try {
            return delegate.compile(args);
        } finally {
            endCall();
        }
    }

    private synchronized void startCall() {
        // Was there no outstanding calls before this call?
        if (++outstandingCalls == 1) {
            // Then the timer task must have been scheduled
            if (idlenessTimerTask == null)
                throw new IllegalStateException("Idle timeout already cancelled");
            // Cancel timeout task
            idlenessTimerTask.cancel();
            idlenessTimerTask = null;
        }
    }

    private synchronized void endCall() {
        if (--outstandingCalls == 0) {
            // No more outstanding calls. Schedule timeout.
            scheduleTimeout();
        }
    }

    private void scheduleTimeout() {
        if (idlenessTimerTask != null)
            throw new IllegalStateException("Idle timeout already scheduled");
        idlenessTimerTask = new TimerTask() {
            public void run() {
                Log.setLogForCurrentThread(ServerMain.getErrorLog());
                toShutdown.shutdown("Server has been idle for " + (idleTimeout / 1000) + " seconds.");
            }
        };
        idlenessTimer.schedule(idlenessTimerTask, idleTimeout);
    }

    @Override
    public void shutdown() {
        idlenessTimer.cancel();
        delegate.shutdown();
    }

}

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

Or download all of them as a single archive file:

File name: jdk.compiler-11.0.1-src.zip
File size: 1347269 bytes
Release date: 2018-11-04
Download 

⇒ JDK 11 jdk.crypto.cryptoki.jmod - Crypto KI Module

⇐ JDK 11 jdk.charsets.jmod - Charsets Module

⇑ Download and Use JDK 11

⇑⇑ FAQ for JDK (Java Development Kit)