iReport "org/primefaces/model/UploadedFile" error in hibernate connection testing

Question

I'm trying to make a hibernate connection to create some reports, but every time I press Test it appears an error window that says org/primefaces/model/UploadedFile, only that.

My classpath already has a jar of my project and the only place where I have the library from the error is inside an entity on the project.

If switch to another's project jar the connection is successful.

I'm using iReport 5.0.4 and Spring 2.9.1.

I'll appreciate any idea of what could be wrong, thanks in advance.

Answer 1

I couldn't figure out what was the problem, so I commented all references to the library and generated the jar that way. I did it only because there's no related data to the things I commented.