Кундера Для класса не найдены метаданные Entity

Я получаю сообщение об ошибке «Метаданные объекта не найдены для класса», используя Кундера, аналогичный вопрос здесь, Для класса не найдены метаданные Entity, но ответ не найден (ответ поместил META-INF в каталог классов, мне это не помогло.

Это ошибка, которую я получаю

3168 [main] WARN com.impetus.kundera.metadata.KunderaMetadataManager  - No Entity metadata found for the class class kundega.rules.Rule. Any CRUD operation on this entity will fail.If your entity is for RDBMS, make sure you put fully qualified entity class name under <class></class> tag in persistence.xml for RDBMS persistence unit. Returning null value.
Exception in thread "main" com.impetus.kundera.KunderaException: java.lang.IllegalArgumentException: Entity object is invalid, operation failed. Please check previous log message for details
    at com.impetus.kundera.persistence.EntityManagerImpl.persist(EntityManagerImpl.java:174)
    at kundega.rules.AppMain.main(AppMain.java:27)
Caused by: java.lang.IllegalArgumentException: Entity object is invalid, operation failed. Please check previous log message for details
    at com.impetus.kundera.graph.ObjectGraphBuilder.getNode(ObjectGraphBuilder.java:101)
    at com.impetus.kundera.graph.ObjectGraphBuilder.getObjectGraph(ObjectGraphBuilder.java:75)
    at com.impetus.kundera.persistence.PersistenceDelegator.persist(PersistenceDelegator.java:135)
    at com.impetus.kundera.persistence.EntityManagerImpl.persist(EntityManagerImpl.java:168)

Итак, вот мои файлы. Persistence.xml

<persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
    http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
    version="2.0">  
    <persistence-unit name="UNIT">      
        <provider>com.impetus.kundera.KunderaPersistence</provider>
        <class>kundega.rules.Rule</class>
        <properties>
            <property name="kundera.client.lookup.class" value="com.impetus.client.rdbms.RDBMSClientFactory" />
            <property name="hibernate.show_sql" value="true" />
            <property name="hibernate.format_sql" value="true" />
            <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5Dialect" />
            <property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver" />
            <property name="hibernate.connection.url" value="jdbc:mysql://130.230.141.228:3306/fastory" />
            <property name="hibernate.connection.username" value="root" />
            <property name="hibernate.connection.password" value="mysql" />
        </properties>
    </persistence-unit>    
</persistence>

Начало класса Entity

  @Entity
    @Table(name="eplrules", schema="fastory")
    public class Rule {
        @Id 
        //@GeneratedValue (strategy=GenerationType.AUTO)
        @Column (name ="rule_id")
        private long ruleId;

        @Column (name ="rule")
        private String rule;

Основной класс

public static void main(String[] args) {        
        System.out.println("start");
        BasicConfigurator.configure();
        EntityManagerFactory emf = Persistence.createEntityManagerFactory("UNIT");        

        Rule r = new Rule();
        r.setRuleId(103);
        r.setRuleName("SomeRuleName");
        r.setRule("SomeRule");

        EntityManager em = emf.createEntityManager();
        em.persist(r);
        Query q = em.createQuery("select p from Rule p");
        List<Rule> rules = q.getResultList();
        em.close();
        System.out.println(rules);
        System.out.println("stop");

        em.close();
        emf.close();


    }