com.liferay.util
Classes 
Autocomplete
BeanParamUtil
ColorUtil
ContentUtil
ContextReplace
CookieUtil
CreditCard
Distance
Encryptor
FiniteStack
FiniteUniqueStack
HTMLParser
InetAddressTask
JS
License
LocalizationUtil
MapUtil
MathUtil
Normalizer
NumberFormatUtil
PKParser
PropertyComparator
PwdGenerator
ResourceBundleUtil
RSSThreadLocal
RSSUtil
Screenshot
SerializableUtil
SetUtil
SimpleCounter
State
StateUtil
ThirdPartyThreadLocalRegistry
TimeZoneSensitive
UniqueList
Version
Exceptions 
EncryptorException