code: private void customLoad() {
          final String s = getCfg().getProperty("custom-loader");
          if (s != null) {
              try {
                  final CustomLoader customLoader = (CustomLoader) Class.forName(s).newInstance();
                  logItem("Custom Loader", s, "*");
                  customLoader.execute(this);
              } catch (ClassNotFoundException e) {
                  error = true;
                  logItem("Custom Loader", s, "?");
              } catch (Exception e) {
                  error = true;
                  error(e);
                  logItem("Custom Loader Failed", s, "!");
              }
          }
      }
docs: Executes a custom loader.