Eclipse how to link a jar containing javadocs/source with its binary?

Question

I would like to have the javadoc comments contained in a jar file show in eclipse when I hover over a class.

For example, after downloading JODA-2.0, three jars are

Answer 1

You can also edit the classpathentry in the file ".classpath" in your eclipse project. This can be helpful if you want to modify many entries at once or if you want to generate the path. e.g.: