RootLogger
getNext()
setNext(Filter)
DEBUG_KEY
Level.FATAL
Level.ERROR
Level.WARN
Level.INFO
Level.DEBUG
LogManager.exists(String)
getEffectiveLevel()
LogManager.getCurrentLoggers()
LogManager.getLoggerRepository()
getLoggerRepository()
Logger.getLogger(String)
Logger.getLogger(Class)
getLevel()
Logger.getRootLogger()
setLevel(Level)
LogManager.shutdown()
setOption
getCurrentLoggers()
Level.toLevel(String)
Level.toLevel(int)
Level.toLevel(int,Level)
Level.toLevel(String,Level)