HHH-8814 : Sequence generators on HSQLDB starts on 1 by default
HHH-8814 : test case
HHH-8814 simplified the test a bit
HHH-8950 Avoid useless creation of an array in #getColumnSpan(Mapping).
HHH-8945 introduced "hibernate.session.initial_capacity" to reduce
StatefulPersistenceContext's Map#resize calls
HHH-8954 Avoid LockOptions allocation in LoadEvent unless strictly required