code: public void log(Level level, String msg, Object param1) {
          if (level.intValue() < levelValue || levelValue == offValue) {
              return;
          }
          LogRecord lr = new LogRecord(level, msg);
          Object params[] = { param1 };
          lr.setParameters(params);
          doLog(lr);
      }
docs: Log a message, with one object parameter.
  <p>
  If the logger is currently enabled for the given message
  level then a corresponding LogRecord is created and forwarded
  to all the registered output Handler objects.
  <p>
  @param   level   One of the message level identifiers, e.g., SEVERE
  @param   msg     The string message (or a key in the message catalog)
  @param   param1  parameter to the message