How to open Javadoc JAR file in web browser
- Rename the file job-service-client-5.1.1-365-javadoc.jar to job-service-client-5.1.1-365-javadoc.zip
- Use your favourite unzip tool (WinRAR / WinZIP) to extract it, now you have a folder job-service-client-5.1.1-365-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 "job-service-client-5.1.1-365-sources.jar" -d "job-service-client-5.1.1-365-javadoc" -subpackages 
