Hibernate version:3.X

If I read data over the method session.createCriteria(BusinessObject.class).list I got the right data. I update the data over a other session.
If I read the data again over the first session I got the old data.
Some other Hibernate user have the same problem. But all solutions which are described will not solve the problem. So I have debug the hibernate methods. I analyse that the method doQuery() in the Load class will call getObjectFromResultSet(...) an this method getRow(...).
GetRow read the entity out of the PersistenceContext (First Level Cahce)
and if the Object exist in the PersistenceContext the new value form
the result set will be ignore. I saw now chance to update the Business Object. Cache setting will not solve the problem. Transaction settings
will not solve the problem. Only a session.clear() wich will call devict() for
all Persistence Objects solve it. But I will not clear() the whole session.
What can I do ?

u can call method session.refresh(object) - which re-read state of object from db

or can evict just one object - session.evict(object) from session, and load him again