Why can't I step through library code when debugging a web project in Netbeans?

I have a Spring MVC web application where the majority of the code I am interested in sits in two Maven projects - one being the war project and another being a jar project on which the war depends. They also share the same parent pom though that is probably irrelevant for this question.

When I try to debug my web project I can't step into any of the code from the jar. I've checked Windows->Debugging->Sources and the jar project's source directory is present there. Both projects are open开发者_运维知识库. Does Netbeans 7.0 not support stepping through a web project's dependencies?

In your library manager screen, in your sources tab, have you provided the location of the source folder.http://wiki.netbeans.org/AttachSourceToLibrary.

When you are stepping in to class files ( that netbeans could not find source far), there usually is a prompt from Netbeans asking if you want to associate a src with this corresponding file. Either way, I have managed to step into dependent projects using Netbeans.