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.

⏎ java/awt/image/TileObserver.java

/*
 * Copyright (c) 1997, 1998, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package java.awt.image;

/**
  * An interface for objects that wish to be informed when tiles
  * of a WritableRenderedImage become modifiable by some writer via
  * a call to getWritableTile, and when they become unmodifiable via
  * the last call to releaseWritableTile.
  *
  * @see WritableRenderedImage
  *
  * @author Thomas DeWeese
  * @author Daniel Rice
  */
public interface TileObserver {

  /**
    * A tile is about to be updated (it is either about to be grabbed
    * for writing, or it is being released from writing).
    *
    * @param source the image that owns the tile.
    * @param tileX the X index of the tile that is being updated.
    * @param tileY the Y index of the tile that is being updated.
    * @param willBeWritable  If true, the tile will be grabbed for writing;
    *                        otherwise it is being released.
    */
    public void tileUpdate(WritableRenderedImage source,
                           int tileX, int tileY,
                           boolean willBeWritable);

}

⏎ java/awt/image/TileObserver.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 

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