error « POJO « JPA Q&A





1. Hibernate POJO class transmiting error between c/s    forum.hibernate.org

Hi ! Recently I wsa confused of an error while I am trying to transmit a pojo class(User) to client(developed by android SDK) point by sequence class as following error: java.io.invalidClassException:org.hibernate.collection.PersistentSet:Incompatible class(SUID) package com.demo.hibernate.beans; import java.io.Serializable; import java.util.Date; import java.util.Set; import org.apache.commons.lang.builder.ToStringBuilder and this is the User pojo class [code] /** @author Hibernate CodeGenerator */ public class User implements Serializable { ...

3. Session is Closed Error during Marshalling of POJO    forum.hibernate.org

I received the following error after upgrading from Hibernate 3.1 to Hibernate 3.1.1. My application uses stateless session beans to retrieve POJO's from hibernate. Each method call involves opening a hibernate session, retrieving some data, closing the session and finally returning the POJOs to the client. I receive the error below during the marshall/unmarshall processing of returning a list of POJOs ...

4. Error while processing template conf/pojo.vm    forum.hibernate.org

Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp I am getting exception while running my ant task to generate the java code from my hbm files. I am using a pojo.vm which is developed as per velocity template and the same was working very well with Hibernate 2.x version. Its throwing the exception when I am trying to upgrade ...

5. Pojo Generation error for huge table    forum.hibernate.org

I have a table that has 800+ columns. I finished mapping the table with annotaions and get the following error at load time: net.sf.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:237) at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:377) at net.sf.cglib.proxy.Enhancer.createClass(Enhancer.java:317) at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:127) at org.hibernate.proxy.pojo.cglib.CGLIBProxyFactory.postInstantiate(CGLIBProxyFactory.java:43) at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:162) at org.hibernate.tuple.entity.AbstractEntityTuplizer.(AbstractEntityTuplizer.java:135) at org.hibernate.tuple.entity.PojoEntityTuplizer.(PojoEntityTuplizer.java:55) at org.hibernate.tuple.entity.EntityEntityModeToTuplizerMapping.(EntityEntityModeToTuplizerMapping.java:56) at org.hibernate.tuple.entity.EntityMetamodel.(EntityMetamodel.java:295) at org.hibernate.persister.entity.AbstractEntityPersister.(AbstractEntityPersister.java:434) at org.hibernate.persister.entity.SingleTableEntityPersister.(SingleTableEntityPersister.java:109) at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55) at org.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:226) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1294) ...