I have two entities : User and Module wich are linked using the many-to-many . 

in my User entity I have a Module list member : 

![enter image description here](https://i.stack.imgur.com/Y4W6W.png)

I insert a new user successfully, but when I want to retrieve the Users I get the Users informations but I don't get the Modules of a user . and I get this error message : 

.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: ma.propar.FireApp.Entites.Utilisateur.modules, could not initialize proxy - no Session