fragmentReference = pageManager.newFragmentReference();
fragmentReference.setRefId("fragment-definition");
root.getFragments().add(fragmentReference);
PageFragment pageFragment = pageManager.newPageFragment();
root.getFragments().add(pageFragment);
SecurityConstraints constraints = pageTemplate.newSecurityConstraints();
constraints.setOwner("admin");
pageTemplate.setSecurityConstraints(constraints);
pageManager.updatePageTemplate(pageTemplate);