How to open Javadoc JAR file in web browser
- Rename the file ports_2.12-100.13.56-snapshot.20200331.3729.0.b43b8d86-javadoc.jar to ports_2.12-100.13.56-snapshot.20200331.3729.0.b43b8d86-javadoc.zip
- Use your favourite unzip tool (WinRAR / WinZIP) to extract it, now you have a folder ports_2.12-100.13.56-snapshot.20200331.3729.0.b43b8d86-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 "ports_2.12-100.13.56-snapshot.20200331.3729.0.b43b8d86-sources.jar" -d "ports_2.12-100.13.56-snapshot.20200331.3729.0.b43b8d86-javadoc" -subpackages 
