[keycloak-user] Photoz Authz example DB issue

Hi, i'm trying to realize how does authz work in keycloak, therefore i tried to run keycloak/examples/authz/photoz project. I failed to run it from git sources (i'm even failed to build or test it!), so i downloaded examples.zip from keycloak.org. I successfully built and deployed jars to keycloak instance, but when i go to specified in README.md urls (http://localhost:8080/photoz-html5-client/#/album/create ...) i see NPEs in keycloak logs. This errors refers to any code like: this.entityManager.createQuery("from Album where name = :name and userId = :userId"); I checked persistence.xml: <persistence-unit name="primary" transaction-type="RESOURCE_LOCAL"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <class>org.keycloak.example.photoz.entity.Album</class> <class>org.keycloak.example.photoz.entity.Photo</class> <properties> <property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect" /> <property name="hibernate.connection.driver_class" value="org.h2.Driver" /> <property name="hibernate.connection.url" value="jdbc:h2:~/keycloak-photoz-example" /> <property name="hibernate.connection.user" value="sa" /> <property name="hibernate.flushMode" value="FLUSH_AUTO" /> <property name="hibernate.hbm2ddl.auto" value="update" /> <property name="hibernate.show_sql" value="false" /> </properties> </persistence-unit> Do i have to make any DB bootstrapping actions or this project should work right out of the box?