Hi Cataldo, what do you mean by BlazeDS it's not compatible with the latest releases of Spring? If you are having troubles with Hibernate 4, there is an patch to make it work, which you can find attached here [1].
I'm using BlazeDS integrated with Spring 3.1 and Hibernate 4 - works really fine. Best regards, Bogdan [1] https://jira.springsource.org/browse/FLEX-220 -- http://www.badu.ro