private void readPageContent(Element pageElement, PageTemplate page) {
        if (page.isFrozen()) return; // Already read
        Section rootSection = new Section(page.getId().toString());
        readSection(pageElement, rootSection);
        page.setSection(rootSection);
        page.freeze();
    }
Throws an exception if the name is not corresponding to the id
container-search/src/main/java/com/yahoo/search/pagetemplates/config/PageTemplateXMLReader.java