How to attach source or JavaDoc in eclipse for any jar file e.g. JavaFX?

Question

Presently I\'m working with JavaFX. Whenever I hover over a method of JavaFX its gives me the following error:

\'Note: This element neither has attached sourc

Answer 1

This trick worked for me in Eclipse Luna (4.4.2): For a jar file I am using (htsjdk), I packed the source in a separate jar file (named htsjdk-2.0.1-src.jar; I could do this since htsjdk is open source) and stored it in the lib-src folder of my project. In my own Java source I selected an element I was using from the jar and hit F3 (Open declaration). Eclipse opened the class file and showed the button "Attach source". I clicked the button and pointed to the src jar file I had just put into the lib-src folder. Now I get the Javadoc when hovering over anything I’m using from the jar.