docs: public void addItemForLogger(Logger logger) {
  
          Item item = m_container.addItem(logger);
          if (item != null) {
              item.getItemProperty(TableColumn.Channel).setValue(logger.getName());
              Logger parent = logger.getParent();
              item.getItemProperty(TableColumn.ParentChannel).setValue(parent != null ? parent.getName() : "none");
              item.getItemProperty(TableColumn.File).setValue(getLogFiles(logger));
              item.getItemProperty(TableColumn.Level).setValue(LoggerLevel.fromLogger(logger));
          }
      }