JDK 11 java.desktop.jmod is the JMOD file for JDK 11 Desktop module.

JDK 11 Desktop module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\java.desktop.jmod.

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

JDK 11 Desktop module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.desktop.

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

⏎ com/sun/media/sound/Toolkit.java

/*
 * Copyright (c) 1999, 2017, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */

package com.sun.media.sound;

import javax.sound.sampled.AudioFormat;
import javax.sound.sampled.AudioInputStream;
import javax.sound.sampled.AudioSystem;

/**
 * Common conversions etc.
 *
 * @author Kara Kytle
 * @author Florian Bomers
 */
public final class Toolkit {

    /**
     * Suppresses default constructor, ensuring non-instantiability.
     */
    private Toolkit() {
    }

    /**
     * Converts bytes from signed to unsigned.
     */
    static void getUnsigned8(byte[] b, int off, int len) {
        for (int i = off; i < (off+len); i++) {
            b[i] += 128;
        }
    }

    /**
     * Swaps bytes.
     * @throws ArrayIndexOutOfBoundsException if len is not a multiple of 2.
     */
    static void getByteSwapped(byte[] b, int off, int len) {

        byte tempByte;
        for (int i = off; i < (off+len); i+=2) {

            tempByte = b[i];
            b[i] = b[i+1];
            b[i+1] = tempByte;
        }
    }

    /**
     * Linear to DB scale conversion.
     */
    static float linearToDB(float linear) {

        float dB = (float) (Math.log(((linear==0.0)?0.0001:linear))/Math.log(10.0) * 20.0);
        return dB;
    }

    /**
     * DB to linear scale conversion.
     */
    static float dBToLinear(float dB) {

        float linear = (float) Math.pow(10.0, dB/20.0);
        return linear;
    }

    /*
     * returns bytes aligned to a multiple of blocksize
     * the return value will be in the range of (bytes-blocksize+1) ... bytes
     */
    static long align(long bytes, int blockSize) {
        // prevent null pointers
        if (blockSize <= 1) {
            return bytes;
        }
        return bytes - (bytes % blockSize);
    }

    static int align(int bytes, int blockSize) {
        // prevent null pointers
        if (blockSize <= 1) {
            return bytes;
        }
        return bytes - (bytes % blockSize);
    }

    /*
     * gets the number of bytes needed to play the specified number of milliseconds
     */
    static long millis2bytes(AudioFormat format, long millis) {
        long result = (long) (millis * format.getFrameRate() / 1000.0f * format.getFrameSize());
        return align(result, format.getFrameSize());
    }

    /*
     * gets the time in milliseconds for the given number of bytes
     */
    static long bytes2millis(AudioFormat format, long bytes) {
        return (long) (bytes / format.getFrameRate() * 1000.0f / format.getFrameSize());
    }

    /*
     * gets the number of bytes needed to play the specified number of microseconds
     */
    static long micros2bytes(AudioFormat format, long micros) {
        long result = (long) (micros * format.getFrameRate() / 1000000.0f * format.getFrameSize());
        return align(result, format.getFrameSize());
    }

    /*
     * gets the time in microseconds for the given number of bytes
     */
    static long bytes2micros(AudioFormat format, long bytes) {
        return (long) (bytes / format.getFrameRate() * 1000000.0f / format.getFrameSize());
    }

    /*
     * gets the number of frames needed to play the specified number of microseconds
     */
    static long micros2frames(AudioFormat format, long micros) {
        return (long) (micros * format.getFrameRate() / 1000000.0f);
    }

    /*
     * gets the time in microseconds for the given number of frames
     */
    static long frames2micros(AudioFormat format, long frames) {
        return (long) (((double) frames) / format.getFrameRate() * 1000000.0d);
    }

    /**
     * Throws an exception if the buffer size does not represent an integral
     * number of sample frames.
     */
    static void validateBuffer(final int frameSize, final int bufferSize) {
        if (bufferSize % frameSize == 0) {
            return;
        }
        throw new IllegalArgumentException(String.format(
                "Buffer size (%d) does not represent an integral number of "
                        + "sample frames (%d)", bufferSize, frameSize));
    }


    static void isFullySpecifiedAudioFormat(AudioFormat format) {
        if (!format.getEncoding().equals(AudioFormat.Encoding.PCM_SIGNED)
            && !format.getEncoding().equals(AudioFormat.Encoding.PCM_UNSIGNED)
            && !format.getEncoding().equals(AudioFormat.Encoding.ULAW)
            && !format.getEncoding().equals(AudioFormat.Encoding.ALAW)) {
            // we don't know how to verify possibly non-linear encodings
            return;
        }
        if (format.getFrameRate() <= 0) {
            throw new IllegalArgumentException("invalid frame rate: "
                                               +((format.getFrameRate()==-1)?
                                                 "NOT_SPECIFIED":String.valueOf(format.getFrameRate())));
        }
        if (format.getSampleRate() <= 0) {
            throw new IllegalArgumentException("invalid sample rate: "
                                               +((format.getSampleRate()==-1)?
                                                 "NOT_SPECIFIED":String.valueOf(format.getSampleRate())));
        }
        if (format.getSampleSizeInBits() <= 0) {
            throw new IllegalArgumentException("invalid sample size in bits: "
                                               +((format.getSampleSizeInBits()==-1)?
                                                 "NOT_SPECIFIED":String.valueOf(format.getSampleSizeInBits())));
        }
        if (format.getFrameSize() <= 0) {
            throw new IllegalArgumentException("invalid frame size: "
                                               +((format.getFrameSize()==-1)?
                                                 "NOT_SPECIFIED":String.valueOf(format.getFrameSize())));
        }
        if (format.getChannels() <= 0) {
            throw new IllegalArgumentException("invalid number of channels: "
                                               +((format.getChannels()==-1)?
                                                 "NOT_SPECIFIED":String.valueOf(format.getChannels())));
        }
    }

    static boolean isFullySpecifiedPCMFormat(AudioFormat format) {
        if (!format.getEncoding().equals(AudioFormat.Encoding.PCM_SIGNED)
            && !format.getEncoding().equals(AudioFormat.Encoding.PCM_UNSIGNED)) {
            return false;
        }
        if ((format.getFrameRate() <= 0)
            || (format.getSampleRate() <= 0)
            || (format.getSampleSizeInBits() <= 0)
            || (format.getFrameSize() <= 0)
            || (format.getChannels() <= 0)) {
            return false;
        }
        return true;
    }

    public static AudioInputStream getPCMConvertedAudioInputStream(AudioInputStream ais) {
        // we can't open the device for non-PCM playback, so we have
        // convert any other encodings to PCM here (at least we try!)
        AudioFormat af = ais.getFormat();

        if( (!af.getEncoding().equals(AudioFormat.Encoding.PCM_SIGNED)) &&
            (!af.getEncoding().equals(AudioFormat.Encoding.PCM_UNSIGNED))) {

            try {
                AudioFormat newFormat =
                    new AudioFormat( AudioFormat.Encoding.PCM_SIGNED,
                                     af.getSampleRate(),
                                     16,
                                     af.getChannels(),
                                     af.getChannels() * 2,
                                     af.getSampleRate(),
                                     Platform.isBigEndian());
                ais = AudioSystem.getAudioInputStream(newFormat, ais);
            } catch (Exception e) {
                if (Printer.err) e.printStackTrace();
                ais = null;
            }
        }

        return ais;
    }
}

⏎ com/sun/media/sound/Toolkit.java

Or download all of them as a single archive file:

File name: java.desktop-11.0.1-src.zip
File size: 7974380 bytes
Release date: 2018-11-04
Download 

⇒ JDK 11 java.instrument.jmod - Instrument Module

⇐ JDK 11 java.datatransfer.jmod - Data Transfer Module

⇑ Download and Use JDK 11

⇑⇑ FAQ for JDK (Java Development Kit)