could you post the relevant snippets of your deployment and also the exception + stacktrace?
I never tried it with such a nested relationship, so unfortunately I cannot provide you with a quick solution.
What are your "FetchType" declarations? Probably all LAZY and no EAGER?
You might find more help is you ask this question in the hibernate forums at https://forum.hibernate.org/index.php . If you find help there, you might update the Wiki article to point at this problem.
thanks for your answer. I will do as you recommend but that will take some time since I am very busy currently.