Type 'org.hibernate.collection.PersistentSet' was not included in the set of types which can be serialized by this SerializationPolicy or its Class object could not be loaded. 如果直接将hibernate的ORM映射对象序列化了传递到gwt里去,并且使用了集合映射,就会出现这个错误。
请问如何解决这个问题,经常碰到这种情况,一直都没有找到解决方法,在项目中,有好多实体类中都会有set集合,用GXT的话老报这个错误。