docs: public Log getInstance(String name)
                      throws LogConfigurationException {
          Log log = loggers.get(name);
          if (log == null) {
              log = new Jdk14Logger(name);
              Log log2 = loggers.putIfAbsent(name, log);
              if (log2 != null) {
                  return log2;
              }
          }
          return log;
      }