VisDoc generates html documentation from ActionScript 2.0, 3.0 and Java class files
From December 2009 VisDoc is free (as in beer).
VisDoc integrates a smart processor to parse class files - you don't need to prepare or rewrite your classes. Even if you don't use doc comments, you can generate handy class documentation with a Table of Contents.
Class relations mean everything. VisDoc links interfaces, superclasses and their methods and properties to give a quick overview how classes are Connected.
Flexibility is built in: documentation pages are formatted with editable templates (XSL and CSS). Just customize to have your own layout and style.
Changed some classes? Start Up the application and hit the Process button - VisDoc remembers all your settings from the last time. You can also save these settings in a project file, so you can use multiple projects without changing settings inbetween.
For even more speed, update only modified or added files. VisDoc detects which files have been updated since the last run, and can process only those.