private CheckedTreeNode findGroupNode(final String group) {
    for (int i = 0; i < getTreeRoot().getChildCount(); i++) {
      CheckedTreeNode node = (CheckedTreeNode)getTreeRoot().getChildAt(i);
      ToolsGroup g = (ToolsGroup)node.getUserObject();
      if (Objects.equals(group, g.getName())) return node;
    }

    return null;
  }
private CheckedTreeNode findGroupNode(final String group)