code: public static void activateLoggers(String loggerList) {
  
  		// Create an empty set. This will contain the list of all of the loggers
  		// to activate. (Note that NONE may be a logger; in this case, all
  		// logging will be deactivated.)
  		EnumSet<LoggingType> flags = EnumSet.noneOf(LoggingType.class);
  
  		// Split on commas and remove white space.
  		for (String name : loggerList.split("\\s*,\\s*")) {
  			try {
  				flags.add(LoggingType.valueOf(name.trim().toUpperCase()));
  			} catch (IllegalArgumentException consumed) {
  			}
  		}
  
  		// Loop over the flags, enabling each one.
  		for (LoggingType type : flags) {
  			type.activate();
  		}
  
  	}
docs: Enable the given types of logging. Note that NONE will take precedence
  over active logging flags and turn all logging off. Illegal logging
  values will be silently ignored.
  
  @param loggerList
  a comma-separated list of logging types to enable