@Test
public void testCreateJcrUuid() throws Exception {
setupPermission("/a", testPrincipal, true, PrivilegeConstants.JCR_READ, PrivilegeConstants.JCR_ADD_CHILD_NODES);
Root testRoot = getTestRoot();
testRoot.refresh();
NodeUtil a = new NodeUtil(testRoot.getTree("/a"));
NodeUtil test = a.addChild("referenceable2", NT_NAME);
test.setString(JcrConstants.JCR_UUID, IdentifierManager.generateUUID());
testRoot.commit();