Attaching source in Eclipse

Eclipse : Luna 4.4.1
JDK : 1.7

Attaching the source for a standard jar file.

You can attach source using the properties for a project.

Go to Properties (for the Project) -> Java Build Path -> Libraries

Select the Library you want to attach source/javadoc for and then expand it, you'll see a list like so:

Source Attachment: (none)
Javadoc location: (none)
Native library location: (none)
Access rules: (No restrictions)

Select Javadoc location and then click Edit on the right hahnd side. It should be quite straight forward from there.

I am looking at how to attach source for a dependent jar (user defined jar) file.

Go to Properties (for the Project) -> Java Build Path -> Libraries

Select the Library you want to attach source/javadoc for and then expand it, 

Corresponding to source attachment - 

Browse the main folder where the source files are present. 

click OK to save the changes.

Hope this helps :)