code: @SuppressWarnings("resource")
      public boolean startNode(final int i) {
          if (i >= nodeList.size()) {
              return false;
          }
          if (!nodeList.get(i).isClosed()) {
              return false;
          }
          final Node node = new ClusterRunnerNode(envList.get(i), pluginList);
          try {
              node.start();
              nodeList.set(i, node);
              return true;
          } catch (final NodeValidationException e) {
              print(e.getLocalizedMessage());
          }
          return false;
      }
docs: Start a closed node.
  
  @param i the number of nodes
  @return true if the node is started.