public ProcessingNode buildNode(Configuration config) throws Exception 
{
        ContainerNode node = new ContainerNode();
        setupNode(node, config);
        return node;
}

 protected boolean hasParameters() 
{
        return false;
}

This builder has no parameters -- return false

 protected  void setupNode(ContainerNode node,
    Configuration config) throws Exception 
{
        this.treeBuilder.setupNode(node, config);
        ProcessingNode[] children = buildChildNodes(config);
        if (children.length == 0) {
            String msg = "There must be at least one child at " + config.getLocation();
            throw new ConfigurationException(msg);
        }
        node.setChildren(children);
}