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/imageio/plugins/wbmp/WBMPImageWriterSpi.java

/*
 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
 *
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 */

package com.sun.imageio.plugins.wbmp;

import javax.imageio.spi.ImageWriterSpi;
import javax.imageio.spi.ServiceRegistry;
import javax.imageio.spi.IIORegistry;
import javax.imageio.stream.ImageOutputStream;
import javax.imageio.ImageWriter;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.IIOException;

import java.awt.image.ColorModel;
import java.awt.image.IndexColorModel;
import java.awt.image.MultiPixelPackedSampleModel;
import java.awt.image.SampleModel;
import java.util.Locale;

public class WBMPImageWriterSpi extends ImageWriterSpi {
    private static String [] readerSpiNames =
        {"com.sun.imageio.plugins.wbmp.WBMPImageReaderSpi"};
    private static String[] formatNames = {"wbmp", "WBMP"};
    private static String[] entensions = {"wbmp"};
    private static String[] mimeType = {"image/vnd.wap.wbmp"};

    private boolean registered = false;

    public WBMPImageWriterSpi() {
        super("Oracle Corporation",
              "1.0",
              formatNames,
              entensions,
              mimeType,
              "com.sun.imageio.plugins.wbmp.WBMPImageWriter",
              new Class<?>[] { ImageOutputStream.class },
              readerSpiNames,
              true,
              null, null, null, null,
              true,
              null, null, null, null);
    }

    public String getDescription(Locale locale) {
        return "Standard WBMP Image Writer";
    }

    public void onRegistration(ServiceRegistry registry,
                               Class<?> category) {
        if (registered) {
            return;
        }

        registered = true;
    }

    public boolean canEncodeImage(ImageTypeSpecifier type) {
        SampleModel sm = type.getSampleModel();
        if (!(sm instanceof MultiPixelPackedSampleModel))
            return false;
        if (sm.getSampleSize(0) != 1)
            return false;

        return true;
    }

    public ImageWriter createWriterInstance(Object extension)
        throws IIOException {
        return new WBMPImageWriter(this);
    }
}

⏎ com/sun/imageio/plugins/wbmp/WBMPImageWriterSpi.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

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