Package org.apache.logging.log4j.core.util

Log4j 2 helper classes.

See:
Description

Interface Summary

Builder<T>	A type of Plugin builder that can be used to configure and create a plugin instance using a Java DSL instead of through a configuration file.
Cancellable	Interface to cancel a Runnable callback.
Clock	Provides the time stamp used in log events.
SecretKeyProvider	Factory class to provide a SecretKey instance.
ShutdownCallbackRegistry	Registry used for Runnable shutdown callback instances.

Class Summary

Assert	Utility class providing common validation logic.
Booleans	Boolean helpers.
CachedClock	Implementation of the Clock interface that tracks the time in a private long field that is updated by a background thread once every millisecond.
ClockFactory	Factory for Clock objects.
Closer	Helper class for closing resources.
CoarseCachedClock	This Clock implementation is similar to CachedClock.
Constants	Log4j Constants.
CyclicBuffer<T>	A bounded buffer containing elements of type T.
DefaultShutdownCallbackRegistry	ShutdownRegistrationStrategy that simply uses Runtime.addShutdownHook(Thread).
FileUtils	File utilities.
Integers	Helps deal with integers.
JndiCloser	Helper class for closing JNDI resources.
KeyValuePair	Key/Value pair configuration item.
KeyValuePair.Builder
Loader	Load resources (or images) from various sources.
NameUtil
NetUtils
NullOutputStream	Writes all data to the famous /dev/null.
OptionConverter	A convenience class to convert property values to specific types.
Patterns	Pattern strings used throughout Log4j.
ReflectionUtil	Utility class for performing common reflective operations.
SetUtils
SystemClock	Implementation of the Clock interface that returns the system time.
Throwables	Helps with Throwable objects.
Transform	Utility class for transforming strings.
TypeUtil	Utility class for working with Java Types and derivatives.
UuidUtil	Generates a unique ID.

Package org.apache.logging.log4j.core.util Description

Log4j 2 helper classes.