All Classes and Interfaces

Class	Description
AbstractCircuitBreaker<T>	Base class for circuit breakers.
AbstractCircuitBreaker.State	An internal enumeration representing the different states of a circuit breaker.
AbstractConcurrentInitializer<T,E>	Abstracts and defines operations for ConcurrentInitializer implementations.
AbstractConcurrentInitializer.AbstractBuilder<I,T,B,E>	Builds a new instance for subclasses.
AbstractFutureProxy<V>	Proxies to a Future for subclassing.
AbstractSupplier<T,B,E>	Abstracts supplying an instance of T.
AggregateTranslator	Deprecated. As of 3.6, use Apache Commons Text AggregateTranslator.
AnnotationUtils	Helper methods for working with Annotation instances.
AppendableJoiner<T>	Joins an array or Iterable into an existing Appendable like a StringBuilder; with the goal for call sites to avoid creating intermediary Strings.
AppendableJoiner.Builder<T>	Builds instances of AppendableJoiner.
ArchUtils	Provides methods for identifying the architecture of the current JVM based on the "os.arch" system property.
ArrayFill	Fills and returns arrays in the fluent style.
ArraySorter	Sorts and returns arrays in the fluent style.
ArrayUtils	Operations on arrays, primitive arrays (like int[]) and primitive wrapper arrays (like Integer[]).
AtomicInitializer<T>	A specialized implementation of the ConcurrentInitializer interface based on an AtomicReference variable.
AtomicInitializer.Builder<I,T>	Builds a new instance.
AtomicSafeInitializer<T>	A specialized ConcurrentInitializer implementation which is similar to AtomicInitializer, but ensures that the AbstractConcurrentInitializer.initialize() method is called only once.
AtomicSafeInitializer.Builder<I,T>	Builds a new instance.
BackgroundInitializer<T>	A class that allows complex initialization operations in a background task.
BackgroundInitializer.Builder<I,T>	Builds a new instance.
BasicThreadFactory	An implementation of the ThreadFactory interface that provides some configuration options for the threads it creates.
BasicThreadFactory.Builder	A builder class for creating instances of BasicThreadFactory.
BitField	Supports operations on bit-mapped fields.
BooleanConsumer	A functional interface like IntConsumer but for boolean.
BooleanUtils	Operations on boolean primitives and Boolean objects.
Builder<T>	The Builder interface is designed to designate a class as a builder object in the Builder design pattern.
CalendarUtils	Helps use Calendars.
CallableBackgroundInitializer<T>	A specialized BackgroundInitializer implementation that wraps a Callable object.
CharEncoding	Deprecated. Java 7 introduced StandardCharsets, which defines these constants as Charset objects.
CharSequenceTranslator	Deprecated. As of 3.6, use Apache Commons Text CharSequenceTranslator.
CharSequenceUtils	Operations on CharSequence that are null safe.
CharSet	A set of characters.
CharSetUtils	Operations on CharSet instances.
CharUtils	Operations on char primitives and Character objects.
CircuitBreaker<T>	An interface describing a Circuit Breaker component.
CircuitBreakingException	An exception class used for reporting runtime error conditions related to circuit breakers.
ClassLoaderUtils	Helps work with ClassLoader.
ClassPathUtils	Operations regarding the classpath.
ClassUtils	Operates on classes without using reflection.
ClassUtils.Interfaces	Inclusivity literals for ClassUtils.hierarchy(Class, Interfaces).
CloneFailedException	Exception thrown when a clone cannot be created.
CodePointTranslator	Deprecated. As of 3.6, use Apache Commons Text CharSequenceTranslator.
ComparableUtils	Helper translating Comparable.compareTo(T) results to booleans.
ComparableUtils.ComparableCheckBuilder<A>	Compares objects of a given generic type A.
CompareToBuilder	Assists in implementing Comparable.compareTo(Object) methods.
CompositeFormat	Deprecated. As of 3.6, use Apache Commons Text CompositeFormat.
Computable<I,O>	Definition of an interface for a wrapper around a calculation that takes a single parameter and returns a result.
ConcurrentException	An exception class used for reporting error conditions related to accessing data of background tasks.
ConcurrentInitializer<T>	Defines the thread-safe initialization of objects.
ConcurrentRuntimeException	An exception class used for reporting runtime error conditions related to accessing data of background tasks.
ConcurrentUtils	A utility class providing functionality related to the java.util.concurrent package.
ConstantInitializer<T>	A very simple implementation of the ConcurrentInitializer interface which always returns the same object.
ConstructorUtils	Utility reflection methods focused on constructors, modeled after MethodUtils.
Consumers	Provides Consumer instances.
ContextedException	An exception that provides an easy and safe way to add contextual information.
ContextedRuntimeException	A runtime exception that provides an easy and safe way to add contextual information.
Conversion	Static methods to convert a type into another, with endianness and bit ordering awareness.
DateFormatUtils	Date and time formatting utilities and constants.
DateParser	DateParser is the "missing" interface for the parsing methods of DateFormat.
DatePrinter	DatePrinter is the "missing" interface for the format methods of DateFormat.
DateUtils	A suite of utilities surrounding the use of the Calendar and Date object.
DefaultExceptionContext	Default implementation of the context storing the label-value pairs for contexted exceptions.
Diff<T>	A Diff contains the differences between two Diffable class fields.
Diffable<T>	Diffable classes can be compared with other objects for differences.
DiffBuilder<T>	Assists in implementing Diffable.diff(Object) methods.
DiffBuilder.Builder<T>	Constructs a new instance.
DiffExclude	Excludes a field from being used by the ReflectionDiffBuilder.
DiffResult<T>	A DiffResult contains a collection of the differences between two Diffable objects.
DoubleRange	Specializes NumberRange for Doubles.
DurationFormatUtils	Duration formatting utilities and constants.
DurationUtils	Utilities for Duration.
EntityArrays	Deprecated. As of 3.6, use Apache Commons Text EntityArrays.
EnumUtils	Provides methods for Java enums.
EqualsBuilder	Assists in implementing Object.equals(Object) methods.
EqualsExclude	Excludes a field from being used by the various reflectionEquals methods defined on EqualsBuilder.
EventCountCircuitBreaker	A simple implementation of the Circuit Breaker pattern that counts specific events.
EventListenerSupport<L>	Manages a list of event listeners of a given generic type.
EventUtils	Provides some useful event-based utility methods.
ExceptionContext	Allows the storage and retrieval of contextual information based on label-value pairs for exceptions.
ExceptionUtils	Provides utilities for manipulating and examining Throwable objects.
ExtendedMessageFormat	Deprecated. As of 3.6, use Apache Commons Text ExtendedMessageFormat.
Failable	This class provides utility functions, and classes for working with the java.util.function package, or more generally, with Java 8 lambdas.
FailableBiConsumer<T,U,E>	A functional interface like BiConsumer that declares a Throwable.
FailableBiFunction<T,U,R,E>	A functional interface like BiFunction that declares a Throwable.
FailableBiPredicate<T,U,E>	A functional interface like BiPredicate that declares a Throwable.
FailableBooleanSupplier<E>	A functional interface like BooleanSupplier that declares a Throwable.
FailableCallable<R,E>	A functional interface like Callable that declares a Throwable.
FailableConsumer<T,E>	A functional interface like Consumer that declares a Throwable.
FailableDoubleBinaryOperator<E>	A functional interface like DoubleBinaryOperator that declares a Throwable.
FailableDoubleConsumer<E>	A functional interface like DoubleConsumer that declares a Throwable.
FailableDoubleFunction<R,E>	A functional interface like DoubleFunction that declares a Throwable.
FailableDoublePredicate<E>	A functional interface like DoublePredicate that declares a Throwable.
FailableDoubleSupplier<E>	A functional interface like DoubleSupplier that declares a Throwable.
FailableDoubleToIntFunction<E>	A functional interface like DoubleToIntFunction that declares a Throwable.
FailableDoubleToLongFunction<E>	A functional interface like DoubleToLongFunction that declares a Throwable.
FailableDoubleUnaryOperator<E>	A functional interface like DoubleUnaryOperator that declares a Throwable.
FailableFunction<T,R,E>	A functional interface like Function that declares a Throwable.
FailableIntBinaryOperator<E>	A functional interface like IntBinaryOperator that declares a Throwable.
FailableIntConsumer<E>	A functional interface like IntConsumer that declares a Throwable.
FailableIntFunction<R,E>	A functional interface like IntFunction that declares a Throwable.
FailableIntPredicate<E>	A functional interface like IntPredicate that declares a Throwable.
FailableIntSupplier<E>	A functional interface like IntSupplier that declares a Throwable.
FailableIntToDoubleFunction<E>	A functional interface like IntToDoubleFunction that declares a Throwable.
FailableIntToFloatFunction<E>	A functional interface like IntToDoubleFunction but for float that declares a Throwable.
FailableIntToLongFunction<E>	A functional interface like IntToLongFunction that declares a Throwable.
FailableIntUnaryOperator<E>	A functional interface like IntUnaryOperator that declares a Throwable.
FailableLongBinaryOperator<E>	A functional interface like LongBinaryOperator that declares a Throwable.
FailableLongConsumer<E>	A functional interface like LongConsumer that declares a Throwable.
FailableLongFunction<R,E>	A functional interface like LongFunction that declares a Throwable.
FailableLongPredicate<E>	A functional interface like LongPredicate that declares a Throwable.
FailableLongSupplier<E>	A functional interface like LongSupplier that declares a Throwable.
FailableLongToDoubleFunction<E>	A functional interface like LongToDoubleFunction that declares a Throwable.
FailableLongToIntFunction<E>	A functional interface like LongToIntFunction that declares a Throwable.
FailableLongUnaryOperator<E>	A functional interface like LongUnaryOperator that declares a Throwable.
FailableObjDoubleConsumer<T,E>	A functional interface like ObjDoubleConsumer that declares a Throwable.
FailableObjIntConsumer<T,E>	A functional interface like ObjIntConsumer that declares a Throwable.
FailableObjLongConsumer<T,E>	A functional interface like ObjLongConsumer that declares a Throwable.
FailablePredicate<T,E>	A functional interface like Predicate that declares a Throwable.
FailableRunnable<E>	A functional interface like Runnable that declares a kind of Throwable.
FailableShortSupplier<E>	A functional interface like IntSupplier but for short that declares a Throwable.
FailableSupplier<T,E>	A functional interface like Supplier that declares a Throwable.
FailableToBooleanFunction<T,E>	A functional interface like a ToBooleanFunction that declares a Throwable.
FailableToDoubleBiFunction<T,U,E>	A functional interface like ToDoubleBiFunction that declares a Throwable.
FailableToDoubleFunction<T,E>	A functional interface like ToDoubleFunction that declares a Throwable.
FailableToIntBiFunction<T,U,E>	A functional interface like ToIntBiFunction that declares a Throwable.
FailableToIntFunction<T,E>	A functional interface like ToIntFunction that declares a Throwable.
FailableToLongBiFunction<T,U,E>	A functional interface like ToLongBiFunction that declares a Throwable.
FailableToLongFunction<T,E>	A functional interface like ToLongFunction that declares a Throwable.
FastDateFormat	FastDateFormat is a fast and thread-safe version of SimpleDateFormat.
FastDateParser	FastDateParser is a fast and thread-safe version of SimpleDateFormat.
FastDatePrinter	FastDatePrinter is a fast and thread-safe version of SimpleDateFormat.
FastTimeZone	Faster methods to produce custom time zones.
FieldUtils	Utilities for working with Fields by reflection.
FluentBitSet	A fluent BitSet with additional operations.
FormatFactory	Deprecated. As of 3.6, use Apache Commons Text FormatFactory.
FormattableUtils	Deprecated. As of 3.6, use Apache Commons Text FormattableUtils.
Fraction	Fraction is a Number implementation that stores fractions accurately.
Functions	Factory for Function.
Functions	Deprecated. Use Failable.
Functions.FailableBiConsumer<O1,O2,T>	Deprecated. Use FailableBiConsumer.
Functions.FailableBiFunction<O1,O2,R,T>	Deprecated. Use FailableBiFunction.
Functions.FailableBiPredicate<O1,O2,T>	Deprecated. Use FailableBiPredicate.
Functions.FailableCallable<R,T>	Deprecated. Use FailableCallable.
Functions.FailableConsumer<O,T>	Deprecated. Use FailableConsumer.
Functions.FailableFunction<I,R,T>	Deprecated. Use FailableFunction.
Functions.FailablePredicate<I,T>	Deprecated. Use FailablePredicate.
Functions.FailableRunnable<T>	Deprecated. Use FailableRunnable.
Functions.FailableSupplier<R,T>	Deprecated. Use FailableSupplier.
FutureTasks	Consists of utility methods that work with FutureTask.
HashCodeBuilder	Assists in implementing Object.hashCode() methods.
HashCodeExclude	Exclude a field from being used by the various reflectionHashcode methods defined on HashCodeBuilder.
IEEE754rUtils	Provides IEEE-754r variants of NumberUtils methods.
ImmutablePair<L,R>	An immutable pair consisting of two Object elements.
ImmutableTriple<L,M,R>	An immutable triple consisting of three Object elements.
InheritanceUtils	Utility methods focusing on inheritance.
IntegerRange	Specializes NumberRange for Integers.
IntStreams	Factory for IntStream.
IntToCharFunction	Represents a function that accepts an int-valued argument and produces a char-valued result.
IterableStringTokenizer	A StringTokenizer that implements Iterable<String> and conversion methods toList() and toStream().
JavaUnicodeEscaper	Deprecated. As of 3.6, use Apache Commons Text UnicodeEscaper.
JavaVersion	An enum representing all the versions of the Java specification.
LangCollectors	Implementations of Collector that implement various reduction operations.
LazyInitializer<T>	This class provides a generic implementation of the lazy initialization pattern.
LazyInitializer.Builder<I,T>	Builds a new instance.
LocaleUtils	Operations to assist when working with a Locale.
LockingVisitors	Combines the monitor and visitor pattern to work with Locks as an alternative to synchronization.
LockingVisitors.LockVisitor<O,L>	Wraps a domain object and a lock for access by lambdas.
LockingVisitors.LockVisitor.LVBuilder<O,L,B>	Builds LockingVisitors.LockVisitor instances.
LockingVisitors.ReadWriteLockVisitor<O>	Wraps a ReadWriteLock and object to protect.
LockingVisitors.ReadWriteLockVisitor.Builder<O>	Builds LockingVisitors.LockVisitor instances.
LockingVisitors.ReentrantLockVisitor<O>	Wraps a ReentrantLock and object to protect.
LockingVisitors.ReentrantLockVisitor.Builder<O>	Builds LockingVisitors.LockVisitor instances.
LockingVisitors.StampedLockVisitor<O>	Wraps a StampedLock and object to protect.
LockingVisitors.StampedLockVisitor.Builder<O>	Builds LockingVisitors.LockVisitor instances.
LongRange	Specializes NumberRange for Longs.
LookupTranslator	Deprecated. As of 3.6, use Apache Commons Text LookupTranslator.
Memoizer<I,O>	Definition of an interface for a wrapper around a calculation that takes a single parameter and returns a result.
MethodInvokers	Converts Method objects to lambdas.
MethodUtils	Utility reflection methods focused on Methods, originally from Commons BeanUtils.
MultiBackgroundInitializer	A specialized BackgroundInitializer implementation that can deal with multiple background initialization tasks.
MultiBackgroundInitializer.MultiBackgroundInitializerResults	A data class for storing the results of the background initialization performed by MultiBackgroundInitializer.
MultilineRecursiveToStringStyle	Works with ToStringBuilder to create a "deep" toString.
Mutable<T>	Provides mutable access to a value.
MutableBoolean	A mutable boolean wrapper.
MutableByte	A mutable byte wrapper.
MutableDouble	A mutable double wrapper.
MutableFloat	A mutable float wrapper.
MutableInt	A mutable int wrapper.
MutableLong	A mutable long wrapper.
MutableObject<T>	A mutable Object wrapper.
MutablePair<L,R>	A mutable pair consisting of two Object elements.
MutableShort	A mutable short wrapper.
MutableTriple<L,M,R>	A mutable triple consisting of three Object elements.
NotImplementedException	Thrown to indicate that a block of code has not been implemented.
NumberRange<N>	Specializes Range for Numbers.
NumberUtils	Provides extra functionality for Java Number classes.
NumericEntityEscaper	Deprecated. As of 3.6, use Apache Commons Text NumericEntityEscaper.
NumericEntityUnescaper	Deprecated. As of 3.6, use Apache Commons Text NumericEntityUnescaper.
NumericEntityUnescaper.OPTION	Deprecated. As of 3.18.0, use Apache Commons Text NumericEntityUnescaper.OPTION.
ObjectToStringComparator	Compares Object's Object.toString() values.
ObjectUtils	Operations on Object.
ObjectUtils.Null	Class used as a null placeholder where null has another meaning.
OctalUnescaper	Deprecated. As of 3.6, use Apache Commons Text OctalUnescaper.
Pair<L,R>	A pair consisting of two elements.
Predicates	Factory for Predicate.
Processor	The Processor represents a microprocessor and defines some properties like architecture and type of the microprocessor.
Processor.Arch	The Processor.Arch enum defines the architecture of a microprocessor.
Processor.Type	The Processor.Type enum defines types of a microprocessor.
RandomStringUtils	Generates random Strings.
RandomUtils	Supplements the standard Random class.
Range<T>	An immutable range of objects from a minimum to maximum point inclusive.
RecursiveToStringStyle	Works with ToStringBuilder to create a "deep" toString.
ReflectionDiffBuilder<T>	Assists in implementing Diffable.diff(Object) methods.
ReflectionDiffBuilder.Builder<T>	Constructs a new instance.
ReflectionToStringBuilder	Assists in implementing Object.toString() methods using reflection.
RegExUtils	Helpers to process Strings using regular expressions.
RuntimeEnvironment	Helps query the runtime environment.
SerializationException	Exception thrown when the Serialization process fails.
SerializationUtils	Assists with the serialization process and performs additional functionality based on serialization.
StandardToStringStyle	Works with ToStringBuilder to create a toString.
StopWatch	StopWatch provides a convenient API for timings.
StrBuilder	Deprecated. As of 3.6, use Apache Commons Text TextStringBuilder.
Streams	Provides utility functions, and classes for working with the java.util.stream package, or more generally, with Java 8 lambdas.
Streams	Deprecated. Use Streams.
Streams.ArrayCollector<E>	A Collector type for arrays.
Streams.ArrayCollector<O>	Deprecated. Use Streams.ArrayCollector.
Streams.FailableStream<T>	A reduced, and simplified version of a Stream with failable method signatures.
Streams.FailableStream<O>	Deprecated. Use Streams.FailableStream.
StringEscapeUtils	Deprecated. As of 3.6, use Apache Commons Text StringEscapeUtils instead
Strings	String operations where you choose case-sensitive Strings.CS vs.
Strings.Builder	Builds Strings instances.
StringUtils	Operations on String that are null safe.
StrLookup<V>	Deprecated. As of 3.6, use Apache Commons Text StringLookupFactory.
StrMatcher	Deprecated. As of 3.6, use Apache Commons Text StringMatcherFactory.
StrSubstitutor	Deprecated. As of 3.6, use Apache Commons Text StringSubstitutor.
StrTokenizer	Deprecated. As of 3.6, use Apache Commons Text StringTokenizer.
Suppliers	Helps use Supplier.
SystemProperties	Accesses current system property names and values.
SystemUtils	Helpers for System.
ThreadUtils	Helpers for Thread and ThreadGroup.
ThreadUtils.NamePredicate	Deprecated. Use a Predicate.
ThreadUtils.ThreadGroupPredicate	Deprecated. Use a Predicate.
ThreadUtils.ThreadIdPredicate	Deprecated. Use a Predicate.
ThreadUtils.ThreadPredicate	Deprecated. Use a Predicate.
ThresholdCircuitBreaker	A simple implementation of the Circuit Breaker pattern that opens if the requested increment amount is greater than a given threshold.
TimedSemaphore	A specialized semaphore implementation that provides a number of permits in a given time frame.
TimeZones	Helps to deal with TimeZones.
ToBooleanBiFunction<T,U>	A function that accepts two arguments and produces a boolean result.
ToStringBuilder	Assists in implementing Object.toString() methods.
ToStringExclude	Excludes a field from being used by the ReflectionToStringBuilder.
ToStringStyle	Controls String formatting for ToStringBuilder.
ToStringSummary	Use this annotation on the fields to get the summary instead of the detailed information when using ReflectionToStringBuilder.
TriConsumer<T,U,V>	Represents an operation that accepts three input arguments and returns no result.
TriFunction<T,U,V,R>	Represents a function that accepts three arguments and produces a result.
Triple<L,M,R>	A triple consisting of three elements.
Typed<T>	Generalization of "has a type."
TypeLiteral<T>	Type literal comparable to javax.enterprise.util.TypeLiteral, made generally available outside the JEE context.
TypeUtils	Utility methods focusing on type inspection, particularly with regard to generics.
TypeUtils.WildcardTypeBuilder	WildcardType builder.
UncheckedException	Abstracts the concept of wrapping a checked exception as unchecked.
UncheckedExecutionException	Unchecked ExecutionException.
UncheckedFuture<V>	An Future that throws unchecked instead checked exceptions.
UncheckedIllegalAccessException	Unchecked IllegalAccessException.
UncheckedInterruptedException	Unchecked InterruptedException.
UncheckedReflectiveOperationException	Unchecked ReflectiveOperationException.
UncheckedTimeoutException	Unchecked TimeoutException.
UnicodeEscaper	Deprecated. As of 3.6, use Apache Commons Text UnicodeEscaper.
UnicodeUnescaper	Deprecated. As of 3.6, use Apache Commons Text UnicodeUnescaper.
UnicodeUnpairedSurrogateRemover	Deprecated. As of 3.6, use Apache Commons Text UnicodeUnpairedSurrogateRemover.
Validate	This class assists in validating arguments.
WordUtils	Deprecated. As of 3.6, use Apache Commons Text WordUtils.