Hibernate - Unknown entity [RESOLVIDO]

Galera estou iniciando no Hibernate e gostaria da ajuda de vocês.
Estou usando Hibernate 3.6 com annotations.

O erro é o seguinte:

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" org.hibernate.MappingException: Unknown entity: br.com.ciadamemoria.Pessoa
	at org.hibernate.impl.SessionFactoryImpl.getEntityPersister(SessionFactoryImpl.java:691)
	at org.hibernate.impl.SessionImpl.getEntityPersister(SessionImpl.java:1485)
	at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:120)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210)
	at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:56)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195)
	at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:50)
	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
	at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:713)
	at org.hibernate.impl.SessionImpl.save(SessionImpl.java:701)
	at org.hibernate.impl.SessionImpl.save(SessionImpl.java:697)
	at br.com.ciadamemoria.Test.main(Test.java:23)

Meu POJO com annotation esta assim:

package br.com.ciadamemoria;

import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

import org.hibernate.annotations.Entity;

@Entity
public class Pessoa {
		
		@Id
		@GeneratedValue(strategy = GenerationType.SEQUENCE)
		private Long id;;
		private String name;

		public Pessoa() {		
		}
		
		public Pessoa(String name) {
			setName(name);
		}
		
		public Long getId() {
			return id;
		}

		public void setId(Long id) {
			this.id = id;
		}

		public String getName() {
			return name;
		}

		public void setName(String name) {
			this.name = name;
		}

		@Override
		public int hashCode() {
			final int prime = 31;
			int result = 1;
			result = prime * result + (int) (id ^ (id >>> 32));
			return result;
		}

		@Override
		public boolean equals(Object obj) {
			if (this == obj)
				return true;
			if (obj == null)
				return false;
			if (getClass() != obj.getClass())
				return false;
			Pessoa other = (Pessoa) obj;
			if (id != other.id)
				return false;
			return true;
		}
}

A classe main:

package br.com.ciadamemoria;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.cfg.Configuration;

import br.com.ciadamemoria.Pessoa;

public class Test {

	public static void main(String[] args) {
		Configuration cfg = new Configuration();
		cfg.configure("/hibernate.cfg.xml");
		cfg.addAnnotatedClass(Pessoa.class);
		SessionFactory sf = cfg.buildSessionFactory();
		Session session = sf.openSession();
		Transaction tx = session.beginTransaction();
		
		Pessoa p = new Pessoa("Marcos");
		
		session.save(p);
		tx.commit();
		session.close();
		
		System.out.println("Fim");
		
	}
}

O meu hibernate.cfg.xml

<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>
	<session-factory>
      <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
      <property name="hibernate.connection.url">jdbc:mysql://localhost/test</property>
      <property name="hibernate.connection.username">root</property>
      <property name="hibernate.connection.password">root</property>
      <property name="hibernate.connection.pool_size">10</property>
      <property name="show_sql">true</property>
      <property name="dialect">org.hibernate.dialect.MySQLDialect</property>
      <property name="hbm2ddl.auto">create</property>
      <mapping class="br.com.ciadamemoria.Pessoa" />
	</session-factory>
</hibernate-configuration>

Obrigado.

Olá pessoal,
esse erro eu resolvi alterado os imports da minha Entity

removido: import org.hibernate.annotations.Entity;
incluso: import javax.persistence.Entity;

encontrei a solução aqui no fórum mesmo. Porem agora estou com o seguinte erro:


SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" org.hibernate.MappingException: Could not instantiate id generator [entity-name=br.com.ciadamemoria.Pessoa]
	at org.hibernate.id.factory.DefaultIdentifierGeneratorFactory.createIdentifierGenerator(DefaultIdentifierGeneratorFactory.java:118)
	at org.hibernate.mapping.SimpleValue.createIdentifierGenerator(SimpleValue.java:193)
	at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:246)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1842)
	at br.com.ciadamemoria.Test.main(Test.java:25)
Caused by: org.hibernate.MappingException: Dialect does not support sequences
	at org.hibernate.dialect.Dialect.getSequenceNextValString(Dialect.java:554)
	at org.hibernate.id.SequenceGenerator.configure(SequenceGenerator.java:101)
	at org.hibernate.id.SequenceHiLoGenerator.configure(SequenceHiLoGenerator.java:60)
	at org.hibernate.id.factory.DefaultIdentifierGeneratorFactory.createIdentifierGenerator(DefaultIdentifierGeneratorFactory.java:111)
	... 4 more

Também resolvi este, procurando aqui no guj.

Na minha Entity alterei onde diz GenerationType.SEQUENCE para GenerationType.IDENTITY

@Id 
@GeneratedValue(strategy = GenerationType.SEQUENCE) 

Identity - Mapeado para colunas identity no DB2, MySQL, MSSQL, Sybase, HSQLDM, Infomix.
Sequence - Mapeado em seqüências no DB2, PostgreSQL, Oracle, SAP DB, irebird (ou generator no Interbase).

Isso pode ser um guia útil para iniciantes… kkk
Agora o erro gerado é este.

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "main" org.hibernate.HibernateException: Unable to instantiate default tuplizer [org.hibernate.tuple.entity.PojoEntityTuplizer]
	at org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:108)
	at org.hibernate.tuple.entity.EntityTuplizerFactory.constructDefaultTuplizer(EntityTuplizerFactory.java:133)
	at org.hibernate.tuple.entity.EntityEntityModeToTuplizerMapping.<init>(EntityEntityModeToTuplizerMapping.java:80)
	at org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:322)
	at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:473)
	at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:133)
	at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:84)
	at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:284)
	at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1842)
	at br.com.ciadamemoria.Test.main(Test.java:25)
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
	at java.lang.reflect.Constructor.newInstance(Unknown Source)
	at org.hibernate.tuple.entity.EntityTuplizerFactory.constructTuplizer(EntityTuplizerFactory.java:105)
	... 9 more
Caused by: java.lang.NoClassDefFoundError: javassist/util/proxy/MethodFilter
	at org.hibernate.bytecode.javassist.BytecodeProviderImpl.getProxyFactoryFactory(BytecodeProviderImpl.java:49)
	at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactoryInternal(PojoEntityTuplizer.java:205)
	at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:183)
	at org.hibernate.tuple.entity.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:167)
	at org.hibernate.tuple.entity.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:77)
	... 14 more
Caused by: java.lang.ClassNotFoundException: javassist.util.proxy.MethodFilter
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 19 more

Alguém consegue me ajudar?
Obrigado.

Classe não encontrada … Caused by: java.lang.ClassNotFoundException: javassist.util.proxy.MethodFilter

Parece que está faltando o javassist-XXX.jar

Resolvido!
Faltava o seguinte jar:

javassist-3.12.0.GA.jar

Objeto persistido no banco.
que isso sirva de referencia para quem esta iniciando no Hibernate, como eu.
Vivendo e aprendendo.
Obrigado GUJ.

[quote=henriquejhc]Classe não encontrada … Caused by: java.lang.ClassNotFoundException: javassist.util.proxy.MethodFilter

Parece que está faltando o javassist-XXX.jar[/quote]

Isso mesmo obrigado.

Olá, pessoal!
Estou iniciando no Hibernate… e, podem ter certeza, me ajudou bastante, dando uma direção para consertar alguns erros que estavam acontecendo aqui!
Valeu msm!

Tópico movido para o fórum de persistência.