Does anyone knows what does this error possible mean ?



java.lang.NullPointerException
at org.hibernate.type.AbstractType.getHashCode(AbstractType.java:112)
at org.hibernate.type.AbstractType.getHashCode(AbstractType.java:120)
at org.hibernate.type.EntityType.getHashCode(EntityType.java:402)
at org.hibernate.type.ComponentType.getHashCode(ComponentType.java:162)
at org.hibernate.engine.EntityKey.generateHashCode(EntityKey.java:103)
at org.hibernate.engine.EntityKey.<init>(EntityKey.java:47)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(Abstrac
tSaveEventListener.java:147)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId
(AbstractSaveEventListener.java:114)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGene
ratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrR
equestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTran
sient(DefaultSaveOrUpdateEventListener.java:175)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(
DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpda
te(DefaultSaveOrUpdateEventListener.java:70)
at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:530)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:518)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:514)
at org.springframework.orm.hibernate3.HibernateTemplate$12.doInHibernate
(HibernateTemplate.java:617)
at org.springframework.orm.hibernate3.HibernateTemplate.execute(Hibernat
eTemplate.java:366)
at org.springframework.orm.hibernate3.HibernateTemplate.save(HibernateTe
mplate.java:614)


when i try to save in my test



ContratoEjecutivo cEj = new ContratoEjecutivo(pojo,48,"EVA00", 1, "AC",new Date());

getHibernateTemplate().save(cEj);

What is pojo = ?

It looks like you have a custom UserType and you have either not implemented equals() & hashCode() or you have an case in which one of the properties in your equals() & hashCode() methods is null.

Ryan-