net.sf.ehcache.util
Classes 
AggregateIterator
CacheTransactionHelper
CircularLossyQueue
ClassLoaderUtil
FailSafeTimer
LargeCollection
LargeSet
MemoryEfficientByteArrayOutputStream
MemorySizeParser
NamedThreadFactory
ProductInfo
PropertyUtil
SetWrapperList
Timestamper
TimeUtil
UpdateChecker
VmUtils