How to open Javadoc JAR file in web browser
- Rename the file atmosphere-gwt-1.0.18.vaadin3-javadoc.jar to atmosphere-gwt-1.0.18.vaadin3-javadoc.zip
- Use your favourite unzip tool (WinRAR / WinZIP) to extract it, now you have a folder atmosphere-gwt-1.0.18.vaadin3-javadoc
- Double click index.html will open the index page on your default web browser.
How to generate Javadoc from a source JAR?
Running the command javadoc:
javadoc --ignore-source-errors -encoding UTF-8 -sourcepath "atmosphere-gwt-1.0.18.vaadin3-sources.jar" -d "atmosphere-gwt-1.0.18.vaadin3-javadoc" -subpackages 
