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Not accessing ejb remote interface when use hibernate jpa 2 provider

 
Greenhorn
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I am learning JPA 2 and Hibernate 3.5.4 with Glassfish 3.0.1 in Netbeans 6.9.
I have two databases one of them is only contain one table. When I wrote an application everthing was fine.
When I trying the second database where there are two tables in one-to-many relation cars (autok) and owners (Ember).

Here is the error

2010.07.23. 13:16:26 com.sun.enterprise.transaction.JavaEETransactionManagerSimplified initDelegates
INFO: Using com.sun.enterprise.transaction.jts.JavaEETransactionManagerJTSDelegate as the delegate
2010.07.23. 13:16:40 com.sun.corba.ee.impl.encoding.CDRInputStream_1_0 read_value
WARNING: "IOP00810257: (MARSHAL) Could not load class org.hibernate.exception.SQLGrammarException"
org.omg.CORBA.MARSHAL: vmcid: SUN minor code: 257 completed: Maybe
at com.sun.corba.ee.impl.logging.ORBUtilSystemException.couldNotFindClass(ORBUtilSystemException.java:10144)
at com.sun.corba.ee.impl.logging.ORBUtilSystemException.couldNotFindClass(ORBUtilSystemException.java:10159)
at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1163)
at com.sun.corba.ee.impl.encoding.CDRInputObject.read_value(CDRInputObject.java:655)
at com.sun.corba.ee.impl.io.IIOPInputStream.inputObjectField(IIOPInputStream.java:2298)
at com.sun.corba.ee.impl.io.IIOPInputStream.inputClassFields(IIOPInputStream.java:2552)
at com.sun.corba.ee.impl.io.IIOPInputStream.inputObject(IIOPInputStream.java:1310)
at com.sun.corba.ee.impl.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:449)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:364)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:320)
at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.readRMIIIOPValueType(CDRInputStream_1_0.java:1066)
at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1175)
at com.sun.corba.ee.impl.encoding.CDRInputObject.read_value(CDRInputObject.java:655)
at com.sun.corba.ee.impl.io.IIOPInputStream.inputObjectField(IIOPInputStream.java:2298)
at com.sun.corba.ee.impl.io.IIOPInputStream.inputClassFields(IIOPInputStream.java:2552)
at com.sun.corba.ee.impl.io.IIOPInputStream.inputObject(IIOPInputStream.java:1310)
at com.sun.corba.ee.impl.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:449)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:364)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:320)
at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.readRMIIIOPValueType(CDRInputStream_1_0.java:1066)
at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1175)
at com.sun.corba.ee.impl.encoding.CDRInputObject.read_value(CDRInputObject.java:655)
at com.sun.corba.ee.impl.io.IIOPInputStream.inputObjectField(IIOPInputStream.java:2298)
at com.sun.corba.ee.impl.io.IIOPInputStream.inputClassFields(IIOPInputStream.java:2552)
at com.sun.corba.ee.impl.io.IIOPInputStream.inputObject(IIOPInputStream.java:1310)
at com.sun.corba.ee.impl.io.IIOPInputStream.simpleReadObject(IIOPInputStream.java:449)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.readValueInternal(ValueHandlerImpl.java:364)
at com.sun.corba.ee.impl.io.ValueHandlerImpl.readValue(ValueHandlerImpl.java:320)
at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.readRMIIIOPValueType(CDRInputStream_1_0.java:1066)
at com.sun.corba.ee.impl.encoding.CDRInputStream_1_0.read_value(CDRInputStream_1_0.java:1175)
at com.sun.corba.ee.impl.encoding.CDRInputObject.read_value(CDRInputObject.java:655)
at com.sun.corba.ee.impl.presentation.rmi.ExceptionHandlerImpl$ExceptionRWRMIImpl.read(ExceptionHandlerImpl.java:183)
at com.sun.corba.ee.impl.presentation.rmi.ExceptionHandlerImpl.readException(ExceptionHandlerImpl.java:295)
at com.sun.corba.ee.impl.presentation.rmi.DynamicMethodMarshallerImpl.readException(DynamicMethodMarshallerImpl.java:505)
at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.privateInvoke(StubInvocationHandlerImpl.java:192)
at com.sun.corba.ee.impl.presentation.rmi.StubInvocationHandlerImpl.invoke(StubInvocationHandlerImpl.java:147)
at com.sun.corba.ee.impl.presentation.rmi.codegen.CodegenStubBase.invoke(CodegenStubBase.java:225)
at ejbs.__EmberkezRemote_Remote_DynamicStub.egyidker(ejbs/__EmberkezRemote_Remote_DynamicStub.java)
at ejbs._EmberkezRemote_Wrapper.egyidker(ejbs/_EmberkezRemote_Wrapper.java)
at rel2p.Rel2pfo.run(Rel2pfo.java:31)
at rel2p.Rel2pfo.main(Rel2pfo.java:24)
Exception occured java.rmi.MarshalException: CORBA MARSHAL 1398079745 Maybe; nested exception is:
org.omg.CORBA.MARSHAL: vmcid: SUN minor code: 257 completed: Maybe
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.glassfish.appclient.client.acc.AppClientContainer.launch(AppClientContainer.java:424)
at org.glassfish.appclient.client.AppClientFacade.launch(AppClientFacade.java:151)
at org.glassfish.appclient.client.AppClientGroupFacade.main(AppClientGroupFacade.java:64)
run:


The source of ejb:

package ejbs;

import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import pojo.Ember;

@Stateless
public class Emberkez implements EmberkezRemote {
@PersistenceContext
EntityManager em;

public Ember egyidker(Integer azon) {
return em.find(Ember.class, azon);
}

}


The source of remote interface:

package ejbs;

import javax.ejb.Remote;
import pojo.Ember;

@Remote
public interface EmberkezRemote {

Ember egyidker(Integer azon);

}


The source of the pojo:

package pojo;

import java.io.Serializable;
import java.util.Collection;
import javax.persistence.Basic;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.OneToMany;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;

@Entity
@Table(name = "Ember")
@NamedQueries({
@NamedQuery(name = "Ember.findAll", query = "SELECT e FROM Ember e"),
@NamedQuery(name = "Ember.findByEmberazon", query = "SELECT e FROM Ember e WHERE e.emberazon = :emberazon"),
@NamedQuery(name = "Ember.findByEmbernev", query = "SELECT e FROM Ember e WHERE e.embernev = :embernev")})
public class Ember implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(generator="emberseq",strategy=GenerationType.SEQUENCE)
@SequenceGenerator(name="emberseq",allocationSize=1,sequenceName="Ember_emberazon_seq")
@Basic(optional = false)
@Column(name = "emberazon")
private Integer emberazon;
@Basic(optional = false)
@Column(name = "embernev")
private String embernev;
@OneToMany(mappedBy = "ember",fetch=FetchType.EAGER,cascade=CascadeType.ALL)
private Collection<Autok> autokCollection;

public Ember() {
}

public Ember(Integer emberazon) {
this.emberazon = emberazon;
}

public Ember(Integer emberazon, String embernev) {
this.emberazon = emberazon;
this.embernev = embernev;
}

public Integer getEmberazon() {
return emberazon;
}

public void setEmberazon(Integer emberazon) {
this.emberazon = emberazon;
}

public String getEmbernev() {
return embernev;
}

public void setEmbernev(String embernev) {
this.embernev = embernev;
}

public Collection<Autok> getAutokCollection() {
return autokCollection;
}

public void setAutokCollection(Collection<Autok> autokCollection) {
this.autokCollection = autokCollection;
}

@Override
public int hashCode() {
int hash = 0;
hash += (emberazon != null ? emberazon.hashCode() : 0);
return hash;
}

@Override
public boolean equals(Object object) {
// TODO: Warning - this method won't work in the case the id fields are not set
if (!(object instanceof Ember)) {
return false;
}
Ember other = (Ember) object;
if ((this.emberazon == null && other.emberazon != null) || (this.emberazon != null && !this.emberazon.equals(other.emberazon))) {
return false;
}
return true;
}

@Override
public String toString() {
return "pojo.Ember[emberazon=" + emberazon + "]";
}

}

And the remote caller application:

package rel2p;

import ejbs.EmberkezRemote;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import pojo.Ember;

public class Rel2pfo {

public static void main(String[] args) {
Rel2pfo rlp = new Rel2pfo();
rlp.run();
}

void run() {
try {
InitialContext ix = new InitialContext();
EmberkezRemote emejb = (EmberkezRemote) ix.lookup("ejbs.EmberkezRemote");
Ember e1 = emejb.egyidker(1);
System.out.println("Neve " + e1.getEmbernev());
}
catch (NamingException nex) {
System.out.println("Naming error " + nex.getLocalizedMessage());
}
catch (Exception ex) {
System.out.println("Exception occured " + ex.getMessage());
}
}

}

 
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