Hi all,

I have an entity, named AdatlapElozetesR, wich looks like this:

package mypackage;

import java.util.*;
import javax.persistence.*;

@Entity
@Table(name = "ADATLAPELOZETESR", uniqueConstraints = {})
public class AdatlapElozetesR implements java.io.Serializable {

 private static final long serialVersionUID = -7341044940631282534L;
 private Integer id;
 private Date datum;

 public AdatlapElozetesR() { }

 public AdatlapElozetesR(Integer id,
 Date datum) {
 this.id = id;
 this.datum = datum;
 }

 public AdatlapElozetesR(AdatlapElozetesR p_adatlapelozetesr) {
 this.id = p_adatlapelozetesr.getId();
 this.datum = p_adatlapelozetesr.getDatum();
 }

 @Id
 @Column(name = "id", unique = true, nullable = false, insertable = true, updatable = true)
 @SequenceGenerator(name="SQC_ALE", sequenceName="ADAT.SQ_ADATLAP_ELOZETES", allocationSize=1)
 @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="SQC_ALE")
 public Integer getId() { return this.id; }
 public void setId(Integer id) { this.id = id; }

 @Temporal(TemporalType.DATE)
 @Column(name = "datum", unique = false, nullable = false, insertable = true, updatable = true, length = 13)
 public Date getDatum() { return this.datum; }
 public void setDatum(Date datum) { this.datum = datum; }

}

To manage this entity I use a session bean:

package mypackage.adat;

import java.sql.*;
import java.text.Format;
import java.text.SimpleDateFormat;
import java.util.*;
import javax.ejb.Stateless;
import javax.ejb.TransactionAttribute;
import javax.ejb.TransactionAttributeType;
import javax.naming.InitialContext;
import javax.sql.DataSource;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;
import org.apache.log4j.*;
import org.hibernate.*;
import org.hibernate.cfg.*;

import mypackage.AdatlapElozetesR;

@Stateless
public class AdatlapElozetesRBean implements AdatlapElozetesRRemote, AdatlapElozetesRLocal, java.io.Serializable {

 private static final Logger log = Logger.getLogger(AdatlapElozetesRBean.class);
 @PersistenceContext(unitName="persistUniter")
 private EntityManager em;

 public void persist(AdatlapElozetesR transientInstance) {
 //AdatlapElozetesR n = new AdatlapElozetesR(transientInstance);
 System.out.println((transientInstance == null ? "transientInstance NULL" :"transientInstance OK, "+transientInstance));
 try {
 em.persist(transientInstance);
 log.debug("persist successful");
 } catch (RuntimeException re) {
 log.error("persist failed", re);
 throw re;
 }
 }

...
}

And my test client looks like this:

package mypackage.test;

import java.util.*;
import javax.naming.InitialContext;

import org.hibernate.*;
import org.hibernate.cfg.*;

import mypackage.adat.*;
import mypackage.*;

public class AdatlapElozetesRTest {

 AdatlapElozetesRTest() {
 System.out.println("AdatlapElozetesRTest()");
 }
 private void CreateAdatlapElozetesR() {
 System.out.println("CreateAdatlapElozetesR()");
 AdatlapElozetesR ale = new AdatlapElozetesR(new Integer(0),
 new Date());
 System.out.println((ale == null ? "ale NULL" : "ale OK"));
 try {
 Properties properties = new Properties();
 properties.setProperty("java.naming.provider.url", "jnp://localhost:1099");
 properties.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming");
 properties.setProperty("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory");
 InitialContext ctx = new InitialContext( properties );
 AdatlapElozetesRInterface aei = (AdatlapElozetesRInterface)ctx.lookup("AdatlapElozetesRBean/remote");
 System.out.println((aei == null ? "aei NULL" : "aei OK"));
 aei.persist(ale);
 } catch(org.hibernate.PersistentObjectException poex) {
 System.out.println("feliras()\n"+poex);
 //ex.printStackTrace();
 } catch(Exception ex) {
 System.out.println("feliras()\n"+ex);
 //ex.printStackTrace();
 }
 }
 public static void main(String[] args) {
 AdatlapElozetesRTest t1 = new AdatlapElozetesRTest();
 t1.CreateAdatlapElozetesR();
 t1 = null;
 }
}

When I run the client, to insert a new row in my table I get this error:

21:47:37,032 INFO [STDOUT] transientInstance OK, mypackage.adat.AdatlapElozetes@80d11b
21:47:37,032 ERROR [AdatlapElozetesBean] persist failed
javax.persistence.PersistenceException: org.hibernate.PersistentObjectException: detached entity passed to persist: mypackage.adat.AdatlapElozetes
 at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:647)
 at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:218)
 at org.jboss.ejb3.entity.TransactionScopedEntityManager.persist(TransactionScopedEntityManager.java:175)
 at mypackage.adat.AdatlapElozetesBean.persist(AdatlapElozetesBean.java:47)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:597)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
 at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
 at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:46)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
 at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
 at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
 at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
 at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:263)
 at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
 at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
 at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
 at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
 at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
 at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398)
 at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)
Caused by: org.hibernate.PersistentObjectException: detached entity passed to persist: mypackage.adat.AdatlapElozetes
 at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:79)
 at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:38)
 at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:618)
 at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:592)
 at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:596)
 at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:212)
 ... 36 more

Can somebody help me, to fix this problem?
Thank you.

My configuration is:

Windows XP,
Java VM: Java HotSpot(TM) Server VM 1.6.0_01-b06,Sun Microsystems Inc.
PostgreSQL 8.2
JBoss [Zion] 4.0.5.GA (build: CVSTag=Branch_4_0 date=200610162339)
Hibernate 3.2.0.ga
Hibernate EntityManager 3.2.0.GA
Hibernate Annotations 3.2.0.GA