The client transaction will not be rolled back if let say the
ejb method invoked by container has transaction attribute = 'RequireNew' so container will rollback only the EJB transaction in case bean has thrown a Remote/EJB exception. (The original transaction was in suspend mode during the invokation of ejb method.)
On the contrary if the ejb method was set with transaction attribute = 'Requires', 'Supports', 'Mandatory' then container will rollback client transaction in case bean throws a Remote/EJB exception.
Hope this help.
Others, please correct my understanding.... its 11:46 PM here