public ProcessingNode buildNode(Configuration config) throws Exception 
{
        
		if (((SitemapLanguage)this.treeBuilder).isBuildingErrorHandler()) {
			throw new ConfigurationException("'map:redirect' is forbidden inside a 'map:handle-errors', at "
			+ config.getLocation());
		}
        // Is it a redirect to resource ?
        this.resourceName = config.getAttribute("resource", null);
        if (this.resourceName != null) {
            getLogger().warn("Redirect to resource is deprecated. Use map:call instead at " +
                config.getLocation());
            this.callNode = new CallNode();
            this.treeBuilder.setupNode(this.callNode, config);
            String target = config.getAttribute("target", null);
            if (target != null) {
                Map params = new HashMap(1);
                params.put("target", VariableResolverFactory.getResolver(target, this.manager));
                this.callNode.setParameters(params);
            }
            return this.callNode;
        } else {
            ProcessingNode URINode = new RedirectToURINode(
                VariableResolverFactory.getResolver(config.getAttribute("uri"), this.manager),
                config.getAttributeAsBoolean("session", false),
                config.getAttributeAsBoolean("global", false),
                config.getAttributeAsBoolean("permanent", false)
            );
            return this.treeBuilder.setupNode(URINode, config);
        }
}

 protected boolean hasParameters() 
{
        return false;
}

This builder has no parameters -- return false

 public  void linkNode() throws Exception 
{
        if (this.callNode != null) {
            CategoryNode resources = CategoryNodeBuilder.getCategoryNode(this.treeBuilder, "resources");
            if (resources == null) {
                String msg = "This sitemap contains no resources. Cannot redirect at " +
                    this.callNode.getLocation();
                throw new ConfigurationException(msg);
            }
            this.callNode.setResource(
                resources,
                this.resourceName
            );
        }
}