I have a multi module project where I have three modules. A, B and C. B is a copy of A. C is made dependent of A If you run this application it will work correctly but then I go and change the dependency in C to C dependent of B. Run the application again and if you follow the stack trace the editor will open up the file from module A instead of B. The same thing happens during Debugging, if you have put a breakpoint in the code, it will open up the wrong file. Example project attached.