org.hibernate.util
Classes 
ArrayHelper
BytesHelper
CalendarComparator
Cloneable
CollectionHelper
ComparableComparator
ConfigHelper
DTDEntityResolver
EmptyIterator
EqualsHelper
ExternalSessionFactoryConfig
FastHashMap
FilterHelper
IdentityMap
IdentityMap.IdentityKey
IdentityMap.IdentityMapEntry
IdentitySet
JDBCExceptionReporter
JoinedIterator
JTAHelper
LazyIterator
MarkerObject
NamingHelper
PropertiesHelper
ReflectHelper
SerializationHelper
SimpleMRUCache
SingletonIterator
SoftLimitMRUCache
StringHelper
XMLHelper
XMLHelper.ErrorLogger