the scenario is like this.

Bean B1 has a method say doProcess. Within doProcess I am calling ordinary class,say class A.. This class A in turn uses threads. Within each thread say a class C is loaded by reflection. Within class C another bean B2's method insertIntoEmployee is called. The insertIntoEmployee method does a database operation. In the try catch of the insertIntoEmployee method a explict session.setRollBackOnly is called. Please note that threads are not spawned from the bean thread

After the method in class A returns. the bean B1 calls some other method, say updateDatabase. In method updateDatabase, a exception occurs and roll back is called. But the database operation done in method insertIntoEmployee does not rollback. WHY????

Sorry to give you too many details in one go. Please tell me whatz wrong....