com.liferay.portal.kernel.util
Interfaces 
CalendarFactory
CallbackMatcher.Callback
Constants
ContentTypes
Converter
Database
DateFormatFactory
Diff
DiffHtml
Digester
FastDateFormatFactory
File
HashCode
HashCodeFactory
Html
Http
JavaConstants
Localization
MimeTypes
MultiValueMapFactory
PortalInitable
PortalLifecycle
PropsKeys
StringEncoder
WebKeys
Classes 
AggregateClassLoader
ArrayUtil
ArrayUtil_IW
ArrayWrapper
AutoResetThreadLocal
Base64
BasePortalLifecycle
BooleanWrapper
BreadcrumbsUtil
CalendarFactoryUtil
CalendarUtil
CallbackMatcher
CharPool
ClassLoaderObjectInputStream
ClassLoaderProxy
ClassUtil
ClearThreadLocalUtil
ClearTimerThreadUtil
ConcurrentHashSet
DatabaseUtil
DateFormatFactoryUtil
DateFormats
DateUtil
DateUtil_IW
DeterminateKeyGenerator
DiffHtmlUtil
DiffResult
DiffUtil
DigesterUtil
DocumentConversionUtil
DoubleWrapper
FastDateFormatFactoryUtil
FileComparator
FileUtil
FloatWrapper
GetterUtil
GetterUtil_IW
HashCodeFactoryUtil
HtmlUtil
Http.Auth
Http.Body
Http.Options
Http.Response
HttpUtil
InetAddressUtil
InfrastructureUtil
InheritableMap
InitialThreadLocal
InstanceFactory
InstancePool
IntegerWrapper
IPDetector
JavaProps
KeyValuePair
KeyValuePairComparator
KMPSearch
ListTree
ListUtil
ListWrapper
LocaleThreadLocal
LocaleUtil
LocalizationUtil
LongWrapper
LRUMap
MapBackedSet
MapUtil
MathUtil
MethodCache
MethodComparator
MethodHandler
MethodInvoker
MethodKey
MethodTargetClassKey
MethodWrapper
MimeTypesUtil
MultiValueMap
MultiValueMapFactoryUtil
NamedThreadFactory
NotificationThreadLocal
NullSafeProperties
NullWrapper
ObjectValuePair
ObjectValuePairComparator
OrderByComparator
OrderedProperties
OSDetector
ParamUtil
ParamUtil_IW
PortalClassInvoker
PortalClassLoaderUtil
PortalInitableUtil
PortalLifecycleUtil
PortletClassInvoker
PrefsParamUtil
PrefsPropsUtil
PrettyDateFormat
PrimitiveIntList
PrimitiveIntSet
PrimitiveLongList
PrimitiveLongSet
PrimitiveWrapper
ProcessUtil
ProgressTracker
ProgressTrackerThreadLocal
PropertiesParamUtil
PropertiesUtil
PropertyResourceBundle
PropsUtil
ProxyFactory
Randomizer
Randomizer_IW
ReflectionUtil
ReleaseInfo
SafeProperties
SerializableUtil
ServerDetector
SessionParamUtil
SetUtil
ShortWrapper
SimplePojoClp
SocketUtil
SocketUtil.BindInfo
SortedProperties
StackTraceUtil
StaticFieldGetter
StreamUtil
StringBundler
StringComparator
StringParser
StringParserFragment
StringPool
StringUtil
StringUtil_IW
SystemEnv
ThreadLocalRegistry
ThreadUtil
Time
TimeZoneThreadLocal
TimeZoneUtil
TimeZoneUtil_IW
TransientValue
TranslatedList
TreeNode
Tuple
UnicodeFormatter
UnicodeFormatter_IW
UnicodeProperties
UnmodifiableList
URLCodec
URLStringEncoder
Validator
Validator_IW
WeakValueConcurrentHashMap
Enums 
Http.Method