How Can I Navigate To A .java File Instead Of A .class File With Sourcepath Specified In The Classpath?

I have a prebuilt jar under my project's libs folder to speed up build-time. However, I would like to browse the lib's source when navigating into one of its contained classes, so

Solution 1:

Just right click on your project, go to properties and under source tab in java build path add your Java files of your Jar.. Should work like that.. try both the options.. forgot which one used to work.. did it long back.. all the best