org.apache.logging.log4j.core.appender
Interfaces 
ManagerFactory
Classes 
AbstractAppender
AbstractManager
AbstractOutputStreamAppender
AsynchAppender
ConsoleAppender
DefaultErrorHandler
FailoverAppender
FailoversPlugin
FileAppender
FileManager
JMSQueueAppender
JMSTopicAppender
OutputStreamManager
RollingFileAppender
SMTPAppender
SocketAppender
SyslogAppender
Enums 
CompressionType
ConsoleAppender.Target
Exceptions 
AppenderRuntimeException