Problems casting with the same class

[johnwcv]

Hi.

First of all, I am using JPA.
My code is:
List<Object> list1 = query.getResultList();
System.out.println("list1.get(0).getClass(): "+list1.get(0).getClass());
System.out.println("TbInfoPersonaJuridica.class: "+TbInfoPersonaJuridica.class);
TbInfoPersonaJuridica obj = (TbInfoPersonaJuridica)list1.get(0);


But, I get the next exception:

INFO: list1.get(0).getClass(): class co.com.colpatria.crm.dao.TbInfoPersonaJuridica
INFO: TbInfoPersonaJuridica.class: class co.com.colpatria.crm.dao.TbInfoPersonaJuridica
GRAVE: find all failed
java.lang.ClassCastException: co.com.colpatria.crm.dao.TbInfoPersonaJuridica cannot be cast to co.com.colpatria.crm.dao.TbInfoPersonaJuridica


I am totally sure that I have only a TbInfoPersonaJuridica class.

Can anyone help me?

[cultclassic]

It might be that the object you are retrieving from the server is a different version of
co.com.colpatria.crm.dao.TbInfoPersonaJuridica
than your client side.

[JosAH]

Maybe the classes were loaded by different class loaders (ClassLoader). Given the Class object you can check that.

kind regards,

Jos

[johnwcv]

Maybe the classes were loaded by different class loaders (ClassLoader). Given the Class object you can check that.

kind regards,

Jos

Apparently, this is the reason.

With this:
System.out.println(list1.get(0).getClass().getClas sLoader().equals(TbInfoPersonaJuridica.class.getCl assLoader()))

I got false.

How could I guarantee or force that both use the same ClassLoader?

[johnwcv]

The error is:

java.lang.IllegalArgumentException: Object: co.com.colpatria.crm.dao.TbInfoPersonaNatural@1a72585 is not a known entity type.
	at oracle.toplink.essentials.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:3212)
	at oracle.toplink.essentials.internal.ejb.cmp3.base.EntityManagerImpl.persist(EntityManagerImpl.java:205)
	at co.com.colpatria.crm.dao.TbInfoPersonaNaturalDAO.save(TbInfoPersonaNaturalDAO.java:99)
.....

The persistence.xml file is:

<?xml version="1.0" encoding="UTF-8"?>
<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_1_0.xsd" version="1.0">
    
	<persistence-unit name="ClientesErradosCRMPU"
		transaction-type="RESOURCE_LOCAL">
		<provider>
			oracle.toplink.essentials.PersistenceProvider
		</provider>
		<class>co.com.colpatria.crm.dao.TbInfoPersonaNatural</class>
		<class>co.com.colpatria.crm.dao.TbInfoPersonaJuridica</class>
		<properties>
...
		</properties>
	</persistence-unit>

</persistence>

Finally, with both clases (TbInfoPersonaNatural and TbInfoPersonaJuridica) I got the same error.

TbInfoPersonaNatural:

@Entity
@Table(name = "TB_INFO_PERSONA_NATURAL", schema = "METRICAS_ORIGINACION")
public class TbInfoPersonaNatural implements java.io.Serializable {
...

TbInfoPersonaJuridica:

@Entity
@Table(name = "TB_INFO_PERSONA_JURIDICA", schema = "METRICAS_ORIGINACION")
public class TbInfoPersonaJuridica implements java.io.Serializable {
...