# README: JavaHelpTM 2.0_04 - December 2004

### Contents:

- Bug Fixes in this Release
- Bug Fixes in the 2.0_03 Release
- Bug Fixes in the 2.0_02 Release
- Bug Fixes in the 2.0_01 Release
- Bug Fixes in the 2.0 Release
- Change to API for Accessing Frames
- File Separators on Win32 Platforms
- Target Audience
- Changes Since the 1.1.3 Release
- Contents of the Release
- How to Get Started
- Redistributable Files
- How to Reach Us
- Limitations and Bugs
- Copyright

## Bug Fixes in this Release

- Bug 6394203 - ArrayIndexOutOfError thrown on multiple threaded machines under certian controled circumstances.
- Bug 6208711 - Faulty checkinstall script in SUNWjhrt Solaris package.

## Bug Fixes in the 2.0_03 Release

- BUG 6195811 - Index find caused the system to hang with various Asian locales.

## Bug Fixes in the 2.0_02 Release

- Bug 4984867 - Confusing documemtation issue on packaging the helpset with the helpset or mapfile outside the Jar file removed.
- Bug 4944565 - Duplicate images on Windows. Updated the names of the images for consistency on Windows platforms. Provided support for images in the UIManager Table.
- Added missing nonavigator.jsp to the server demo.
- Added support for Polish locale.
- Bug 5044936 - HelpSet.getCombinedMap was not recursive through subhelpsets.
- Bug 5057152 - Null Pointer Exception was thrown when mergeing Helpsets when there was no name.
- Bug 5056158 - The default presentation was not used when the HelpBroker was created. Added a JHelp.setHelpSetPresentation(HelpSet.Presentation) method and updated the demos to use the default presentation.
- Bug 5107221 - Intial startup was slow. The data for navigators was being loaded in the event thread. They are now loaded in a lower priority thread resulting in a faster startup time.
- Bug 4949896 - Errors in Czech and Slovak Constants corrected
- Bug 4942062 - Fixed IllegalArgumentException: argument is null when adding a favorite node after restarting an application thas has some favorites recorded in the user's favorites file.
- Bug 6175340 - JavaHelp could be displayed on multiheaded machines.

## Bug Fixes in the 2.0_01 Release

- Bug 4923782 - SortMerge was not handling a dataless master navigator (a master navigator with no elements) correctly. The symptom was that the navigator being merged had nothing in it after the sort merge. This bug has been fixed. Now, when a sort merge is performed, a subhelpset navigator can populate a master navigator with data. One effect of this fix is that a subhelpset can add new master elements, and merges of subsequent subhelpsets with matching elements will then have those elements merged into these new master elements as though the new elements were originally part of the master helpset.
- Bug 4924174 - `WindowPresentation.setSize` not working on dialogs. The symptom was that calling `HelpBroker.setSize` had no effect on the size of the help window. Now setting the size of the presentation works in all cases.
- Bug 4927588 - Search on statically merged helpsets was working only for the master helpset. Now search works for all helpsets statically merged into a helpset.
- Bug 4932737 - `FavoritesAction` in ApiDemo throws null pointer exception. The NPE was thrown because the `BasicFavoritesNavigator` class stored the last `HelpEventModel`, which in some cases didn't exist. This class has been changed to use the `currentID` and `currentURL` from the `HelpModel` instead.

  There was an additional request in this bug report to add a Favorites button to the IdeDemo. IdeDemo doesn't require a Favorites button because the user can add a Favorites item by right-clicking the mouse inside the Favorites navigator.

- Bug 4932740 - JavaHelp System User's Guide incorrectly states that a Favorites button is automatically added to the toolbar of the help viewer when you define a Favorites section in the helpset file. This statement was partially correct: a Favorites button is automatically added to the default help viewer. However, if you define your own presentations in the helpset file, you must add a help action for the favorites button to the toolbar section. See the updated JUHG section "Favorites Navigator and File" for more information.
- Bug 4933497 - Can't print from Favorites navigator. This bug has been fixed. You can now print any selected items in the Favorites navigator.
- Bug 4933965 - The Windows print dialog allows printing of up to 9999 blank pages on successive prints of JavaHelp topics. This bug has been fixed.
- Bug 4934582 - Selecting a TOC item that has an alternate presentation defined in the helpset file causes JavaHelp to hang. This bug has been fixed.
- Bug 4934908 - Can't add a favorites from search if SearchItem URL isn't in map file. The fix was to properly identify the help set name and URL if a matching ID wasn't found in the helpset file.
- Bug 4936341 - When adding a favorite item the deep copy of a `FavoritesNode` causes a null value to be created for a child, which in turns causes an `IllegalArgumentException` to be thrown. Fixed in this release - it's now possible to add a an item to the Favorites navigator without causing exceptions.

## Bug Fixes in the 2.0 Release

- Bugs 4148736 and 4884507 - No control over TOC and index nodes' initial state - would like to be able to display these navigators with nodes expanded or collapsed. Version 2.0 makes it possible to specify in the TOC and index files whether or not nodes initially display in an expanded or collapsed state. Additionally new `collapseID()` and `expandID()` methods have been added to `JHelpTOCNavigator` and `JHelpIndexNavigator`.
- Bug 4182971 - `<homeID>` topic should be highlighted in TOC. The home topic is now highlighted in the TOC or index when the help set first opens.
- Bug 4228385 - InstallAnywhere fails with Solaris Group JVM (Java 2). We are no longer using InstallAnywhere to install JavaHelp.
- Bug 4228425 - InstallAnywhere license and info panes sometimes blank (Solaris CDE). We are no longer using InstallAnywhere to install JavaHelp.
- Bug 4235715 - Can't get context sensitive help ID for content of component. The problem reported was a 2D editing component that was the bulk of a user interface. Users wanted to have context sensitive help for the elements within the 2D editing component. There was no way to get the `MouseEvent` of the user's click from `CSH.trackCSEvents`.

  The solution was to create a new set of methods in the `CSH` class and a new interface named `CSH.Manager`. There is an explanation in the JavaHelp System User's Guide (section 5.3.4 "Dynamic Map ID Assignment") of how to use the `CSH` methods and `CSH.Manager` to assign help IDs dynamically.

- Bug 4295269 - Content pane does not load document the first time the help set is viewed. The content viewer was not being properly initialized to the current ID on creation of the viewer. This has been fixed.
- Bug 4276012 - Search highlighting off in some cases. Search highlighting is now correctly synchronized with the help viewer.
- Bug 4375554 - Internal style sheets throw off search highlighting. Search highlighting is now correctly synchronized.
- Bug 4459055 - Indexer can't index more than 500 documents on Solaris. This bug was fixed by calling `in.close()` in `Index.java` when done with an `InputStream`.
- Bug 4463539 - `HelpModel.setCurrentURL` doesn't work when `currentURL` is null. This method was passing a null URL. It now works correctly.
- Bug 4478631 - When running in ja locale, the tooltips for 'page setup', 'Contents', 'Index' and 'Search' are shown in English. These tooltips now display in Japanese if the locale is JA
- Bug 4484945 - TOC and Index not highlighting topic if reference (anchor) is clicked in ContentViewer. The TOC and Index navigators track the topics in the content pane of the help viewer. They do so by highlighting the corresponding entry in the navigator when the user opens a topic that is in the helpset. More precisely, they track map IDs of topics. Prior to this fix, if the link went to an anchor that did not have a map ID defined for it, the tracking didn't work. Now the tracking does work: It finds the map ID of the main file.
- Bug 4486379 - HelpViewer window's size gets reset whenever it is invoked to show help. The fix was to add a `setSize` method to `MainWindow`. This method determines first if the dialog or frame exists and then passes their values back in `getSize` rather than the default sizes. If the dialog or frame doesn't exist the defaults are returned.
- Bug 4635290 - Errors in search engines in help sets can cause VM to abruptly exit. The fix was to remove the call to `System.exit`. The original problem was caused by the user's incorrectly specifying the search engine in the helpset file. Thus, even with this fix, search won't work if the search engine isn't specified correctly, but now the error doesn't cause the JVM to exit.
- Bug 4680140 - `xml:lang` tag doesn't parse locale strings correctly. The problem was that the parser couldn't handle the "-" character. Now it does.
- Bug 4690618 - `SecondaryViewer` memory leaks and out of memory errors. Secondary windows were complete rewritten in version 2.0 and shouldn't exhibit any memory leaks.
- Bug 4696361 - Print dialog does not come up when using JavaHelp with JDK 1.4. Fixed in version 2.0.
- Bug 4736708 - Search results display truncates some results in JavaHelp 1.1.3. This bug was fixed in version 2.0.
- Bug 4747558 - JavaHelp User's Guide PDF version doesn't have images. Using a different PDF generator has enabled images to be produced for the PDF version of the user's guide.
- Bug 4768427 - Printing from JavaHelp causes a freeze. The freeze was happening with very small help topics. It has been fixed.
- Bug 4788532 - `BasicSearchCellRenderer` throws a `NullPointerException` when the title member is null, and the help viewer fails to load and paint. The fix was to not make the call if the title is null.
- Bug 4789016 - JavaHelp is not threadsafe on a multiprocessor machine. The problem was caused by incorrect usage of `Thread.stop()` in the search engine. The fix was to completely rewrite the code in the search engine.
- Bug 4845876 - French translation error: JavaHelp is translating the tooltip tip.pageSetup as 'Lise en page', but the translation should be 'Mise en page'. This translation error was fixed.
- Bug 4859304 - `DefaultHelpBroker.setHelpSet` doesn't work as expected. The reported problem was with two help sets called programmatically as follows:
  a) Create a `DefaultHelpBroker` by calling its default constructor.
  b) Assign the helpset using `DefaultHelpBroker.setHelpSet()`.
  In JavaHelp 1.1.3:
  Calling `DefaultHelpBroker.setHelpSet(a),` worked as expected.
  Calling `DefaultHelpBroker.setHelpSet(b)`, did display b's TOC, but the content pane was still using the page from helpset a.
  In JavaHelp 2.0:
  Calling `DefaultHelpBroker.setHelpSet(b)` had no effect at all. It still displayed a's TOC.
  The V2.0 bug was fixed. If you want the content pane to change when you switch back and forth between helpsets, either you must set the `currentID`, or you need to have a `homeID` set for the helpset to which you switch. Either technique will correctly display a page from the current helpset.
- Bug 4890962 - The first time context sensitive help is activated, it shows the home page, rather than the page associated with the helpID. Specifically, after calling `CSH.DisplayHelpAfterTracking`, the first time the `actionPerformed` method was called, the help window displayed the home page rather than the context-sensitive topic in the content pane. This bug was fixed, and now the context-sensitive page displays as expected.
- Bug 4910723 - `DefaultHelpBroker.setSize(Dimension)` and `setLocation(Point)` don't work. The helpset could not be resized or moved with these two methods. These methods are now working.
- Bug 4910769 - After starting the application, the first time that `setHelpID()` is called the JavaHelp browser opens but always shows the default topic defined for the helpset. After the first time the call works properly. This bug was fixed, and the first call to `setHelpID()` now displays the topic associated with the helpID.
- Bug 4933236 - Presentation toolbar and navigators ignored in secondary windows. This bug has been fixed. Secondary windows defined as presentations in the helpset file now can display navigators and a toolbar. As described in the "Helpset File" section of the JavaHelp User's Guide, if you want only the topic pane to display for a secondary window (no navigators), you must use the `displayviews="false"` attribute when you define the presentation because the navigators display by default for any presentation defined in the helpset. To get a toolbar to display, you must define one with the `<toolbar>` tag.

## Change to API for Accessing Frames

In previous versions of JavaHelp, you could directly access the frame in which JavaHelp is displayed if you extended the DefaultHelpBroker. After extending DefaultHelpBroker, you were able access the protected JFrame frame field.

In JavaHelp 2, the frame field is no longer accessible. In applications that use JavaHelp 2, you will have to rewrite code that does this kind of frame access. Use the following methods:

> `WindowPresentation DefaultHelpBroker.getWindowPresentation();
> Window WindowPresentation.getHelpWindow();`

You will still be able to access the frame with the following method calls:

> `WindowPresentation pres = hb.getWindowPresentation();
> Window win = pres.getHelpWindow();`

## File Separators on Win32 Platforms ("/" vs. "\")

All files in the JavaHelp system are specified as URLs. The separator between elements (files) in a hierarchy should be "/". In some cases "\" works on the Win32 platforms; however when the files that contain these references are added to JAR files or moved to different platforms, these references no longer work.

## Target Audience

JavaHelp software is intended for help authors, information architects, and software developers who need a framework for delivering online help and documentation.

## Changes Since the 1.1.3 Release

Changes since the 1.1.3 release are described in the "Release Information" chapter of the JavaHelp System User's Guide. You can view the JavaHelp System User's Guide either as a PDF file or as a JavaHelp helpset by executing the UserGuide.jar file in the `demos\bin` folder as described in the next section, Contents of the Release.

## Contents of the Release

The contents of the release are described in the "Release Information" chapter of the JavaHelp System User's Guide. You can view the JavaHelp System User's Guide by executing the UserGuide.jar file in the `demos\bin` folder.

To execute the jar file, open a command window and change your directory to the `demos\bin` folder, then enter the following command at the command line:

       java -jar UserGuide.jar

The JavaHelp System User's Guide is also included in PDF format in `doc\jhug\jhug.pdf` and can be read and printed by using the Adobe Acrobat Reader program available at http://www.adobe.com/products/acrobat/readstep2.html.

## Getting Started

You install JavaHelp software by extracting the zip file. While most installations will not require any additional installation tasks, some installations might require that the environment variable JAVAHELP_HOME be defined so that jhindexer and jhsearch will work correctly. You will know that you need to set JAVAHELP_HOME if, after installation, you see an error from jhindexer or jhsearch indicating that the environment variable needs to be set.

## Redistributable Files

The following files are redistributable. Distribution of these files is governed by the Terms and Conditions of the JavaHelp Binary Code License.

`javahelp/lib/jh.jar` | The standard library that includes everything needed to use the help viewer and the standard navigator types (TOC, index, full-text search).
`javahelp/lib/jhall.jar` | Includes all the JavaHelp system classes, including the tools required to create a search database.
`javahelp/lib/jhbasic.jar` | A subset of `jhall.jar` that does not include support for the full-text search engine. This subset might be useful for simple help systems that do not require a full-text search database or for help systems whose size is important.
`javahelp/lib/jhsearch.jar` | The default full-text search engine used in the JavaHelp system.

## How to Reach Us

### Mailing List

We maintain a mailing list for regular information about JavaHelp updates and events. To subscribe, send mail to:

> listserv@javasoft.com.

In the body of the message type

> `SUBSCRIBE JAVAHELP-INFO`

### Feedback

Comments and questions about how the JavaHelp system software works are welcome. Please review the FAQ at our home page, and if your question is not covered, send email by using the following web page:

> http://java.sun.com/docs/forms/javahelp-sendusmail.html

If you have comments on the JavaHelp specification, instead of the web page above, please send comments to:

> jsr-97-comments@jcp.org

Your email message will be read. However, due to the large volume of emails, we might not able to respond personally.

### Discussion group (JAVAHELP-INTEREST)

Sun maintains a mailing list as a JavaHelp community resource where interested parties can post and exchange information and inquiries about the JavaHelp system in a public forum. Subscribers to this list can receive inquiries either as they are posted or in regular digest versions.

To subscribe, send mail to:

> listserv@javasoft.com

In the body of the message type:

> `SUBSCRIBE JAVAHELP-INTEREST`

To view archives, manage your subscription, or to unsubscribe, go to:

> http://archives.java.sun.com/archives/javahelp-interest.html

### Web Site

Other information can be obtained at our web site:

> http://java.sun.com/products/javahelp

We hope to hear from you!

## Limitations and Bugs

Limitations and bugs are described in the "Release Information" chapter of the JavaHelp System User's Guide. You can view the JavaHelp System User's Guide as a JavaHelp helpset by executing UserGuide.jar in the `demos\bin` folder as described previously under Contents of the Release.

## Copyright

Copyright 2003 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Sun, Sun Microsystems, the Sun Logo, Solaris, Java, the Java Coffee Cup Logo, JDK, Java Foundation Classes (J.F.C.), Java Plug-in and JavaHelp are trademarks or registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries.

DOCUMENTATION IS PROVIDED "AS IS" AND ALL EXPRES