ideally we should get to the following situation:

• each package has its own configuration and its own session factory
• all tests with the same session factory should reuse the session factory as much as possible to prevent unnecessary parsing and DB schema creation
• parts of the test suite that use the same session factory should run sequentially
• in between tests of the same part, the database should be cleaned (delete from <table> for all tables
• inbetween parts, the db schema should be dropped and the new schema should be created

This should all work in junit test suite and from mvn command line