Eclipse java debugging: source not found

Question

While debugging a java app in eclipse I receive a \"Source not found\" error in two cases:

• Stepping in to a file in a different project which

Answer 1

In my case in "Attach Source", I added the other maven project directory in the "Source Attachment Configuration" panel. Adding the latest version jar from the m2 repository din't work. All the classes from the other maven project failed to open.

Here test was my other maven project containing all the java sources.