I created an API to delete an Entity by its key however I'm gettin Http 204 and Entity does not delete from data-store.
This is my API,
#ApiMethod(name = "deleteContact", path = "contact", httpMethod = ApiMethod.HttpMethod.DELETE)
public void deleteContact(final #Named("id") long contactId)
{
ofy().delete().type(Contact.class).id(contactId).now();
}
and my Contact class is like this:
#Entity
#Cache
public class Contact
{
#Id
private long id;
#Index
private String cName;
private Email cEmail;
private PhoneNumber cPhoneNumber;
// private key, to connect this Entity to Profile Entity
#Parent
#ApiResourceProperty(ignored = AnnotationBoolean.TRUE)
private Key<Profile> profileKey;
#ApiResourceProperty(ignored = AnnotationBoolean.TRUE)
private String profileId;
// default constructor is private
private Contact()
{
}
public Contact(final long id, final String profileId, final ContactForm contactForm)
{
Preconditions.checkNotNull(contactForm.getUserName(), "The name is required");
this.id = id;
this.profileKey = Key.create(Profile.class, profileId);
this.profileId = profileId;
updateWithContactForm(contactForm);
}
/**
* Updates the Contact with ContactForm.
* This method is used upon object creation as well as updating existing Contact.
*
* #param contactForm contains form data sent from the client.
*/
public void updateWithContactForm(final ContactForm contactForm)
{
this.cName = contactForm.getUserName();
this.cEmail = contactForm.getUserEmailAddress();
this.cPhoneNumber = contactForm.getUserPhoneNumber();
}
public long getId() {
return id;
}
public String getcName() {
return cName;
}
public Email getcEmail() {
return cEmail;
}
public PhoneNumber getcPhoneNumber() {
return cPhoneNumber;
}
#ApiResourceProperty(ignored = AnnotationBoolean.TRUE)
public Key<Profile> getProfileKey() {
return profileKey;
}
// Get a String version of the key
public String getWebSafeKey()
{
return Key.create(profileKey, Contact.class, id).getString();
}
#ApiResourceProperty(ignored = AnnotationBoolean.TRUE)
public String getProfileId() {
return profileId;
}
#Override
public String toString() {
return "Contact{" +
"id=" + id +
", cName='" + cName + '\'' +
", cEmail=" + cEmail +
", profileId='" + profileId + '\'' +
", cPhoneNumber=" + cPhoneNumber +
'}';
}
}
Any idea would be appreciated.
You've got a parent associated with your class Contact.
// private key, to connect this Entity to Profile Entity
#Parent
#ApiResourceProperty(ignored = AnnotationBoolean.TRUE)
private Key<Profile> profileKey;
In datastore, Contact entities are stored as:
/User1Profile/SomeContact1
/User1Profile/SomeContact2
Datastore can't search any entity with just the ID of contact (i.e. "SomeContact1") but it can search if you provide parent as well. The right way to delete would be:
ofy().delete().type(Contact.class).parent(profileKey).ids(contactId).now();
Read this for more details: https://code.google.com/p/objectify-appengine/wiki/BasicOperations#Deleting
Related
I have added Hibernate filters on my entities . These filters are applied on queries which fetch Collection of entity but not applied on queries which fetch single entity. Below is my code.
AOrganization.java
#MappedSuperclass
#FilterDef(name = "OrgFilter", parameters = { #ParamDef(name = "allowedOrgIdList", type = "long") })
#Filter(name = "OrgFilter", condition = "org_id in (:allowedOrgIdList)")
public class AOrganization implements Serializable {
#ManyToOne()
#JoinColumn(name = "org_id", nullable = true)
private Organization organization;
public Organization getOrganization() {
return organization;
}
public void setOrganization(Organization organization) {
this.organization = organization;
}
}
Site.java
#Data
#Entity
#Table(name = "site")
public class Site extends AOrganization{
private static final long serialVersionUID = 1L;
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
#Column(name = "id")
private long id;
#Column(name = "site_name")
private String siteName;
#Override
public String toString() {
return "Site [id=" + id + ", siteName=" + siteName + "]";
}
}
SiteService.java
public interface SiteService {
public List<Site> getAllSites();
public List<Site> getSiteBySiteName(String siteName);
public Site updateSiteName(Long id, String siteName);
}
SiteRepository.java
#Repository
public interface SiteRepository extends AOrganizationRepository<Site, Long> {
public List<Site> findBySiteName(String siteName);
public List<Site> findByOrganization_Id(Long orgId);
}
AOrganizationRepository.java
#NoRepositoryBean
public interface AOrganizationRepository<T, ID extends java.io.Serializable> extends CrudRepository<T, ID> {
}
SiteServiceImpl.java
#Service
public class SiteServiceImpl implements SiteService {
#Autowired
private EntityManager entityManager;
#Autowired
private SiteRepository siteRepository;
#Override
public List<Site> getAllSites() {
Iterable<Site> sites = siteRepository.findAll();
List<Site> allSites = new ArrayList<>();
sites.forEach(allSites::add);
return allSites;
}
#Override
public List<Site> getSiteBySiteName(String siteName) {
List<Site> allSites = siteRepository.findBySiteName(siteName);
return allSites;
}
#Override
public Site updateSiteName(Long id,String siteName) {
Site site = siteRepository.findById(id).get();
if(site == null)
return null;
site.setSiteName(siteName);
siteRepository.save(site);
return site;
}
}
AOrganizationAspect.java
#Aspect
#Component
#Slf4j
public class AOrganizationAspect {
#PersistenceContext
private EntityManager entityManager;
#Pointcut("execution(public * com.harshal.springboot.springfilter.repository.AOrganizationRepository+.*(..))")
protected void aOrganizationRepositoryRepositoryMethod() {
log.info("aOrganizationRepositoryRepositoryMethod");
}
#Around(value = "aOrganizationRepositoryRepositoryMethod()")
public Object enableOwnerFilter(ProceedingJoinPoint joinPoint) throws Throwable {
// Variable holding the session
Session session = null;
try {
// Get the Session from the entityManager in current persistence context
session = entityManager.unwrap(Session.class);
// Enable the filter
Filter filter = session.enableFilter("OrgFilter");
// Set the parameter from the session
List<Long> orgList = getAllowedOrgIdList();
filter.setParameterList("allowedOrgIdList", orgList);
} catch (Exception ex) {
// Log the error
log.error("Error enabling OrgFilter : Reason -" + ex.getMessage());
}
// Proceed with the joint point
Object obj = joinPoint.proceed();
// If session was available
if (session != null) {
// Disable the filter
session.disableFilter("OrgFilter");
}
// Return
return obj;
}
private List<Long> getAllowedOrgIdList() {
return Arrays.asList(2l);
}
}
So , hibernate filters are applied if method getSiteBySiteName is called and filters are not applied if findById method is called.
Below are queries :
For getSiteBySiteName :
select site0_.id as id1_2_, site0_.org_id as org_id3_2_,
site0_.site_name as site_nam2_2_ from site site0_ where site0_.org_id
in (?) and site0_.site_name=?
Please help . Thanks in advance.
For findById
select site0_.id as id1_2_0_, site0_.org_id as org_id3_2_0_,
site0_.site_name as site_nam2_2_0_, organizati1_.id as id1_1_1_,
organizati1_.address as address2_1_1_, organizati1_.org_name as
org_name3_1_1_ from site site0_ left outer join organization
organizati1_ on site0_.org_id=organizati1_.id where site0_.id=?
findById is using the EntityManager.find method and do not create a query.
Plus Hibernate Filters only work on queries.
You should write a query instead of using findById
I was trying to add data to my tableView in my JavaFX app. I am using hibernate to do operations on my Database. I used a query to get all the orders and store each order in an object and added the object to the observable list of the tableView. I created the orders class and mapped it to my database. This is the class of the orders:
#Entity
#Table(name = "orders")
public class orders implements Serializable {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name = "order_id")
private int order_id;
#JoinColumn(name = "item_id")
#ManyToOne
#NotNull
private items item_id;
#Column(name = "quantity")
#NotNull
private int quantity;
#Column(name = "price_per_unit")
#NotNull
private double price_per_unit;
#Column(name = "total_price")
#NotNull
private double total_price;
#Column(name = "order_date")
#NotNull
private Date order_date;
#JoinColumn(name = "user_id")
#ManyToOne
#NotNull
private users user_id;
public orders() {
}
public orders(int order_id, items item_id, int quantity, double price_per_unit, double total_price, Date order_date, users user_id) {
this.order_id = order_id;
this.item_id = item_id;
this.quantity = quantity;
this.price_per_unit = price_per_unit;
this.total_price = total_price;
this.order_date = order_date;
this.user_id = user_id;
}
public int getOrder_id() {
return order_id;
}
public void setOrder_id(int order_id) {
this.order_id = order_id;
}
public items getItem_id() {
return item_id;
}
public void setItem_id(items item_id) {
this.item_id = item_id;
}
public int getQuantity() {
return quantity;
}
public void setQuantity(int quantity) {
this.quantity = quantity;
}
public double getPrice_per_unit() {
return price_per_unit;
}
public void setPrice_per_unit(double price_per_unit) {
this.price_per_unit = price_per_unit;
}
public double getTotal_price() {
return total_price;
}
public void setTotal_price(double total_price) {
this.total_price = total_price;
}
public Date getOrder_date() {
return order_date;
}
public void setOrder_date(Date order_date) {
this.order_date = order_date;
}
public users getUser_id() {
return user_id;
}
public void setUser_id(users user_id) {
this.user_id = user_id;
}
}
And the below code is the code of the view in which I have the tableView that loads the orders and displays the orders from the database:
public class OrdersPageController implements Initializable {
private Main app;
private Session session;
private Transaction transaction = null;
#FXML
private TableView<orders> table;
public void setApp(Main app) {
this.app = app;
}
/**
* Initializes the controller class.
*/
#Override
public void initialize(URL url, ResourceBundle rb) {
session = HibernateUtil.getSessionFactory().openSession();
transaction = session.beginTransaction();
//Fill the table view
getOrders();
}
public void goBack(ActionEvent event){
session.close();
transaction = null;
app.goToHomePage();
}
public void processLogout(ActionEvent event){
session.close();
transaction = null;
app.userLogout();
}
public void addOrder(ActionEvent event){
session.close();
transaction = null;
app.addOrdersPage();
}
public void deleteOrder(ActionEvent event){
session.close();
transaction = null;
app.closeOrdersPage();
}
public void getOrders(){
try{
String hql = "FROM orders";
Query query = session.createQuery(hql);
List<orders> list = query.getResultList();
for (orders o : list) {
//Create an order object
orders order = new orders();
order.setOrder_id(o.getOrder_id());
order.setItem_id(o.getItem_id());
order.setPrice_per_unit(o.getPrice_per_unit());
order.setQuantity(o.getQuantity());
order.setOrder_date(o.getOrder_date());
order.setTotal_price(o.getTotal_price());
order.setUser_id(o.getUser_id());
//Create an observable list for the table
ObservableList<orders> tableList = table.getItems();
//Add the order object to the list
tableList.add(order);
//Set the created list to the table to show data
table.setItems(tableList);
}
}catch(Exception e){
System.out.println(e.getMessage());
}
finally{
session.close();
}
}
}
Note that the getOrders method is the method that gets the orders from the database and sets the observable list of the tableView.
I am having problem displaying the item_id and the user_id of the order. I think the problem is that they both are objects of type items and users respectively and the table displays the address of the objects. Instead I want to display the numbers of the ids of the item ordered and the user that made the order. If you know what I can do to fix my problem please share it with me.
Add cellFactorys to the relevant columns. You haven't shown the FXML in the question, so I don't know the names you assigned to the appropriate TableColumn instances, but you can do something like this:
public class OrdersPageController implements Initializable {
// ...
#FXML
private TableView<orders> table;
#FXML
private TableColumn<orders, users> userColumn ;
#Override
public void initialize(URL url, ResourceBundle rb) {
userColumn.setCellFactory(tc -> new TableCell<>() {
#Override
protected void updateItem(users user, boolean empty) {
super.updateItem(user, empty);
if (empty || user == null) {
setText("");
} else {
String text = /* anything you need based on user */
setText(text);
}
}
});
session = HibernateUtil.getSessionFactory().openSession();
transaction = session.beginTransaction();
//Fill the table view
getOrders();
}
}
Just override toString method in users and items Classes:
Example: in your users Class ->
#Override
public String toString() {
return user_id.toString();
}
As James_D stated, have a look on java conventions. Java Classes should be always be with Capital Letter.
I am trying to achieve many-to-many relationship in Room Persistence Library. I am trying to create a Notes App with Tags.
The idea is:
A note will have multiple tags.
A tag will have multiple notes.
Show all notes in RecyclerView along with Tags.
To achieve this, I have created two models Note.java, Tag.java and TagJoin model to store the relationship b/w notes and tags. Achieving one-to-one is very easy using #Relation annotation.
Here are my models
#Entity(tableName = "notes")
public class Note {
#PrimaryKey
#NonNull
public final String id;
#ColumnInfo(name = "note")
public String note;
#Ignore
public List<Tag> tags;
#Ignore
public Note(String note) {
this(UUID.randomUUID().toString(), note);
}
public Note(String id, String note) {
this.id = id;
this.note = note;
}
public String getId() {
return id;
}
public String getNote() {
return note;
}
public void setNote(String note) {
this.note = note;
}
public List<Tag> getTags() {
return tags;
}
public void setTags(List<Tag> tags) {
this.tags = tags;
}
#Entity(tableName = "note_tag_join",
primaryKeys = {"noteId", "tagId"},
foreignKeys = {
#ForeignKey(
entity = Note.class,
parentColumns = "id",
childColumns = "noteId",
onDelete = CASCADE),
#ForeignKey(
entity = Tag.class,
parentColumns = "id",
childColumns = "tagId",
onDelete = CASCADE)},
indices = {
#Index(value = "noteId"),
#Index(value = "tagId")
}
)
public static class TagJoin {
#NonNull
public final String noteId;
#NonNull
public final String tagId;
public TagJoin(String noteId, String tagId) {
this.noteId = noteId;
this.tagId = tagId;
}
}
}
Tags Model:
#Entity(tableName = "tags", indices = {#Index(value = "name", unique = true)})
public class Tag {
#PrimaryKey
#NonNull
public String id;
#ColumnInfo(name = "name")
public String name;
#Ignore
public Tag(String name) {
this(UUID.randomUUID().toString(), name);
}
public Tag(String id, String name) {
this.id = id;
this.name = name;
}
public String getId() {
return id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
Notes Dao:
#Dao
public interface NoteDao {
#Query("SELECT * FROM notes ORDER BY id DESC")
LiveData<List<Note>> getAllNotes();
#Insert
long insert(Note note);
#Update
void update(Note note);
#Delete
void delete(Note note);
#Query("DELETE FROM notes")
void deleteAll();
#Query("SELECT COUNT(*) FROM notes")
int getNotesCount();
#Query("SELECT notes.* FROM notes\n" +
"INNER JOIN note_tag_join ON notes.id=note_tag_join.noteId\n" +
"WHERE note_tag_join.tagId=:tagId")
List<Note> getAllNotesOfTag(String tagId);
#Insert
void insert(Note.TagJoin... joins);
#Delete
void delete(Note.TagJoin... joins);
}
So far everything is good. Now I want to show the Notes in RecyclerView but I can't find a way to fetch all Notes along with Tags at once. One way is, getting the tags of each note in onBindViewHolder method which I think is wrong as we have to query the db each time row is displayed.
Please provide me suggestions.
PS: I have followed the code provided in this article
https://commonsware.com/AndroidArch/previews/mn-relations-in-room
I created an app server using Google Endpoints, it is a backend for an instant messaging app. Every user has a list of friends.
When I create a new friend, I am adding users to each other's friend list using the method below. However, it is giving me following error when I add a friend, because of circular dependency.
I looked at other questions and solutions posted. Most of them are structured differently and they didn't solve my problem.
One answer in this website recommends adding #JSONIgnore, but I don't have any field to add that. I tried to put #JsonManagedReference but I couldn't figure out where to put #JSONBackReference. Other examples on this website, usually have another field that refers to parent, but I don't have it.
Thanks for your help in advance.
Error 500 com.google.appengine.repackaged.org.codehaus.jackson.map.JsonMappingException:
Infinite recursion (StackOverflowError) (through reference chain: com.google.common.collect.TransformingRandomAccessList[0]-
>com.net.myapplication.backend.model.User[\"friends\"]->com.google.common.collect.TransformingRandomAccessList[0]-
>com.net.myapplication.backend.model.User[\"friends\"]-
addFriend method
#ApiMethod(name = "addFriend", httpMethod = "post")
public User addFriend(#Named("regId") String regId, #Named("email") String email) {
User user = findRecord(regId);
User friend = findRecordByEmail(email);
if (user == null){
log.info("User " + regId + " is not registered.");
} else{
if (friend == null){
log.info("User " + email + " is not registered.");
} else{
if (hasFriend(user, friend)){
log.info("User " + email + " is already a friend.");
} else {
user.getFriendsRef().add(Ref.create(friend));
friend.getFriendsRef().add(Ref.create(user));
ofy().save().entity(friend).now();
ofy().save().entity(user).now();
return friend;
}
}
}
return null;
}
User model
#Entity
public class User {
#Id
Long id;
#Index
private String regId;
private String firstName;
private String lastName;
#Index
private String email;
private Language language;
#Load
private List<Ref<User>> friends = new ArrayList<>();
public User() {}
public User(Long id, String regId, String firstName, String lastName, String email, Language language, List<Ref<User>> friends) {
this.id = id;
this.regId = regId;
this.firstName = firstName;
this.lastName = lastName;
this.email = email;
this.language = language;
this.friends = friends;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getRegId() {
return regId;
}
public void setRegId(String regId) {
this.regId = regId;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public Language getLanguage() {
return language;
}
public void setLanguage(Language language) {
this.language = language;
}
public List<User> getFriends() {
return Deref.deref(friends);
}
#ApiResourceProperty(ignored = AnnotationBoolean.TRUE)
public List<Ref<User>> getFriendsRef(){
return friends;
}
public void setFriends(ArrayList<Ref<User>> friends) {
this.friends = friends;
}
}
It sounds like this question is: "How do I return data structures with cycles through Cloud Endpoints?"
If it serializes data with vanilla Jackson (Jackson 1.x, from the look of that stacktrace), you can't. Jackson 2 has support for JSOG, but that would mean abandoning Cloud Endpoints:
https://github.com/jsog/jsog
https://github.com/jsog/jsog-jackson
I'm worring about JDO in GAE (Google App Engine). (GWT 2.4 and GAE 1.6.3 SDK and JDO 2.3)
I have a class "Users" which should save a Collection of "User" in a List, but it doesn't work.
When i save my Users-Class, then it creates the "Users"-Object in the Datebase and it also creates the User-Object in the List users. But when i load the Users-Object from the Database, the List users is empty...
Do i have to load the list by my self? I guess that JDO schould load the list directy, when i load the Users-Object.
I need your Help here! Thanks in previous!
Could it be a Problem that i create the Key in abstract class PersistentUser and PersistentUsers?
Could the LinkedList be the Problem?
My Code:
#PersistenceCapable(identityType = IdentityType.APPLICATION, detachable = "true")
#Version(strategy=VersionStrategy.VERSION_NUMBER)
public class Users extends PersistentUsers implements Serializable{
/**
*
*/
private static final long serialVersionUID = -21666269538993247L;
/**
* Mapped from Operator X
*/
#Persistent
private String operatorId;
#Persistent(mappedBy="userlist")
#Element(dependent = "true")
private List<User> users;
/**
*
* List of Ids of Users
*
*/
#Persistent(serialized = "true")
#Element(dependent = "true")
private List<String> userIds;
/**
* #return the users
*/
public List<User> getUsers() {
return users;
}
/**
* #param users the users to set
*/
public void setUsers(List<User> users) {
this.users = users;
}
...
}
The User Class:
#PersistenceCapable(identityType = IdentityType.APPLICATION, detachable = "true")
#Version(strategy=VersionStrategy.VERSION_NUMBER)
public class User extends PersistentUser implements Serializable{
/**
*
*/
private static final long serialVersionUID = 6899284258473985914L;
#Persistent
private String emailAddress;
#Persistent
private UserRole role;
/**
*
* Mapped from Userlist X from Operator Y
*/
#Persistent
private Users userlist;
public User(String email, UserRole role){
this.emailAddress = email;
this.role = role;
}
public String getEmailAddress() {
return emailAddress;
}
public void setEmailAddress(String emailAddress) {
this.emailAddress = emailAddress;
}
public UserRole getRole() {
return role;
}
public void setRole(UserRole role) {
this.role = role;
}
/**
* #return the userlist
*/
public Users getUserlist() {
return userlist;
}
/**
* #param userlist the userlist to set
*/
public void setUserlist(Users userlist) {
this.userlist = userlist;
}
}
PersistentUser and PersistentUsers Class are the same content (but because of JDO-AppEngine Inheritance Problem two seperate classes:
#PersistenceCapable(identityType = IdentityType.APPLICATION, detachable = "true")
#Inheritance(strategy = InheritanceStrategy.SUBCLASS_TABLE)
#Version(strategy=VersionStrategy.VERSION_NUMBER)
public abstract class PersistentUsers implements IPersitentObject {
/**
* Id
*
* Autogenerated String id of the Database
*
*/
#PrimaryKey
#Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
protected Key encodedKey;
#Persistent
protected String username;
#Override
public String getId() {
if(encodedKey == null) return null;
return KeyFactory.keyToString(encodedKey);
}
/*public void setId(String id) {
this.encodedKey = id;
}*/
/**
* Helper function - get Version from DB
*/
#Override
public Long getVersion(){
...
}
/**
* Helper function - will save this instance in DB
*/
public void persist(){
...
}
/**
* Helper function - will remove this instance from DB
*/
public void delete(){
...
}
#Override
public final boolean checkUsername() {
...
}
}
Create User Code:
...
if(RequestFactoryServlet.getThreadLocalRequest().getUserPrincipal() != null){
//Create New User
String email = RequestFactoryServlet.getThreadLocalRequest().getUserPrincipal().getName();
User u = UserFactory.getUser(email, UserRole.ADMINISTRATOR);
//u.persist();
//Create New Userlist
Users users = UserFactory.getUsers();
//Get Uids (normally empty)
LinkedList<String> uids = (LinkedList<String>) users.getUserIds();
if(uids==null){
uids = new LinkedList<String>();
}
uids.add(u.getId());
//Get DB-Userlist of current User-List
LinkedList<User> userlist = (LinkedList<User>) users.getUsers();
if(userlist==null){
userlist = new LinkedList<User>();
}
userlist.add(u);
users.setUserIds(uids);
users.setUsers(userlist);
u.setUserlist(users);
//Persit Userlist and Persist User
users.persist();
this.userlistId = users.getId();
}
...
Persistence Code:
public static void persist(IPersitentObject o){
PersistenceManager pm = Pmf.get().getPersistenceManager();
try{
pm.makePersistent(o);
} catch (Exception e) {
e.printStackTrace();
}finally {
pm.close();
}
}
I found the problem/solution
It's my stupid brain thinking i could fetch it while debugging.
My code is correct, but the information is not in the object while debugging!
Test it in a TestCase showed, that it works.
public class UsersTest {
private PersistenceManager pm;
private final LocalServiceTestHelper helper =
new LocalServiceTestHelper(new LocalDatastoreServiceTestConfig());
private String userlistId;
private String userId;
#Before
public void setUp() throws Exception {
helper.setUp();
pm = ch.zhaw.ams.server.core.persistance.Pmf.get().getPersistenceManager();
}
#After
public void tearDown() throws Exception {
}
#Test
public void testNewUsers() {
//New UserList
//Create New Userlist
Users users = UserFactory.getUsers();
//Create New User
String email = "ss";
User u = UserFactory.getUser(email, UserRole.ADMINISTRATOR);
users.getUsers().add(u);
users.persist();
this.userlistId = users.getId();
this.userId = users.getUsers().get(0).getId();
//Test Users
pm = ch.zhaw.ams.server.core.persistance.Pmf.get().getPersistenceManager();
Users ul= pm.getObjectById(Users.class, this.userlistId);
assertNotNull(ul);
assertNotNull(ul.getUsers().get(0));
assertTrue(ul.getUsers().get(0).getId().equals(this.userId));
pm.close();
}
}