Guardar OneToMany Hibernate

[detective_jd]

Hola Fuzzylog el error que me da es este:

may 03, 2017 12:37:58 AM org.hibernate.internal.ExceptionMapperStandardImpl mapManagedFlushFailure
ERROR: HHH000346: Error during managed flush [deleted object would be re-saved by cascade (remove deleted object from associations): [app.model.entity.Estado#1]]

y el pequeño cambio al código es este:

Código Java:

@OneToMany(mappedBy = "key.subasta",cascade = CascadeType.MERGE,orphanRemoval = true)
    private List<Venta>ventas = new ArrayList();
 

Espero sus respuestas y saludos.