code: private static void setJULLevel( java.util.logging.Logger logger, String log4jLevelConfig )
      {
          java.util.logging.Level level = log4jLevelToJULLevel( log4jLevelConfig );
          logger.setLevel( level );
      }
docs: Set the log level to the specified JUL logger.
  
  @param logger The logger to configure
  @param log4jLevelConfig The value contained in the property file. (For example: "ERROR, file")