How to open Javadoc JAR file in web browser
- Rename the file de.pro-vision.maven.build-tools.global-build-tools-mixin-3-javadoc.jar to de.pro-vision.maven.build-tools.global-build-tools-mixin-3-javadoc.zip
- Use your favourite unzip tool (WinRAR / WinZIP) to extract it, now you have a folder de.pro-vision.maven.build-tools.global-build-tools-mixin-3-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 "de.pro-vision.maven.build-tools.global-build-tools-mixin-3-sources.jar" -d "de.pro-vision.maven.build-tools.global-build-tools-mixin-3-javadoc" -subpackages 
