How to open Javadoc JAR file in web browser
- Rename the file test-dar-files-1.13-lib_2.13-1.16.0-snapshot.20210727.7476.0.b5e9d861-javadoc.jar to test-dar-files-1.13-lib_2.13-1.16.0-snapshot.20210727.7476.0.b5e9d861-javadoc.zip
- Use your favourite unzip tool (WinRAR / WinZIP) to extract it, now you have a folder test-dar-files-1.13-lib_2.13-1.16.0-snapshot.20210727.7476.0.b5e9d861-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 "test-dar-files-1.13-lib_2.13-1.16.0-snapshot.20210727.7476.0.b5e9d861-sources.jar" -d "test-dar-files-1.13-lib_2.13-1.16.0-snapshot.20210727.7476.0.b5e9d861-javadoc" -subpackages 
