docs: public static final void logMessage(Level level, String key, Object... args) {
          if (WsLevel.AUDIT.equals(level))
              Tr.audit(tc, key, args);
          else if (WsLevel.ERROR.equals(level))
              Tr.error(tc, key, args);
          else if (Level.INFO.equals(level))
              Tr.info(tc, key, args);
          else if (Level.WARNING.equals(level))
              Tr.warning(tc, key, args);
          else
              throw new UnsupportedOperationException(level.toString());
      }