CatalogFactory catalogFactory = CatalogFactory.getInstance();
if(catalogFactory.getCatalog() == null)
catalogFactory = CatalogFactory.getInstance(catalogConfig);
assert catalogFactory != null;
Catalog catalog = catalogFactory.getCatalog();
if(catalog != null) {
xhrServletCommand = (Chain)catalog.getCommand(COMMAND_XHR);
}
if(xhrServletCommand != null) {
xhrServletCommand.addCommand(new ErrorCRI());
}