`:top
`!JavaHelp`! is both an application and a format for `F33f`_`[online help`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Online_help]`_`f files that can be displayed by the JavaHelp browser. It is written in `F33f`_`[Java`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Java_(programming_language)]`_`f, and is mainly used in Java applications. It can be used for any application and it does require the overhead of the `F33f`_`[JRE`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Java_Runtime_Environment]`_`f to load.
The file format is `F33f`_`[XML`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=XML]`_`f.
The `F33f`_`[GUI`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=GUI]`_`f uses a tri-pane layout, with a `F33f`_`[toolbar`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Toolbar]`_`f and `F33f`_`[menu`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Menu_(computing)]`_`f at the top, navigation pane on the left, and content viewer on the right. The navigation pane includes searching, indexing, and a table of contents.
>>Contents
• `F0af`_`[License`#license]`_`f
• `F0af`_`[References`#references]`_`f
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>>License
JavaHelp application used to come with the `F33f`_`[GNU General Public License with Classpath exception`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=GPL_linking_exception]`_`f`:cite-ref-agplv2-1-0[`F5bf`_`[1`#cite-note-agplv2-1]`_`f]
However, since the source code from JavaHelp was put on GitHub for `F33f`_`[JavaEE`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Java_Platform,_Enterprise_Edition]`_`f, the source code has been re-licensed to the `F33f`_`[Common Development and Distribution License`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=Common_Development_and_Distribution_License]`_`f.`:cite-ref-agplv2-1-1[`F5bf`_`[1`#cite-note-agplv2-1]`_`f] However the source code files are still (mistakenly) under the GPLv2 with Classpath exception license`:cite-ref-2[`F5bf`_`[2`#cite-note-2]`_`f]
>>References
`:cite-note-agplv2-1`!1.`! `F0af`_`[↑`#cite-ref-agplv2-1-0]`_`f "Give JavaHelp a chance! was: Release Apache NetBeans 9.0 Alpha (incubating)". 2017-11-08. Retrieved 2017-12-17. `*Yes, NetBeans depends on JavaHelp and JavaHelp has been developed under GPLv2 with CP exception(...) Btw. there already is github.com/javaee/javahelp with CDDL license.`*
`:cite-note-2`!2.`! `F0af`_`[↑`#cite-ref-2]`_`f "CDDL or GPL license?". `*`F33f`_`[GitHub`:/page/wikibook/entry.mu`zim=wikipedia_en_all_nopic_2025-08.zim|entry_path=GitHub]`_`f`*. 2017-11-08. Retrieved 2017-12-17.
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