org.apache.logging.log4j.core.appender
Interfaces 
ManagerFactory
Classes 
AbstractAppender
AbstractManager
AbstractOutputStreamAppender
AsyncAppender
ConsoleAppender
DefaultErrorHandler
FailoverAppender
FailoversPlugin
FileAppender
FileManager
OutputStreamManager
RandomAccessFileAppender
RandomAccessFileManager
RollingFileAppender
RollingRandomAccessFileAppender
SmtpAppender
SocketAppender
SyslogAppender
TlsSyslogFrame
Enums 
ConsoleAppender.Target
Exceptions 
AppenderLoggingException