The first I store UserModel to DB
Then I try getting user and my method(see below) return null but I
check db and there is stored object
I don't know what a problem
Help!
My method
public UserModel getUserByLoginAndPassword(String login, String
password) {
                PersistenceManager pm = getPersistenceManager();
                Query getUserQuery = pm.newQuery(UserModel.class);
                getUserQuery.setFilter("userLogin == vLogin");
                getUserQuery.setFilter("password == vPassword");
                getUserQuery.declareParameters("String vLogin, String 
vPassword");

                UserModel result = null;
                try {
                        List<UserModel> list = (List<UserModel>) 
getUserQuery.execute(
                                        login, password);
                        if (!list.isEmpty()) {
                                result = list.get(0);
                        }
                } finally {
                        getUserQuery.closeAll();
                        releasePersistenceManager(pm);
                }
                return result;
        }

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