create
Returns an empty LogLevelMap with a single default level which will apply to all loggers.
Returns a LogLevelMap whose entries correspond to the given map, and with the default value of Level.OFF. The keys of the map must all be valid dot-separated logger names, and the values cannot be null.
Returns a LogLevelMap whose entries correspond to the given map. The keys of the map must all be valid dot-separated logger names, and neither the values, nor the default value, can be null.