java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType

[T.W.H]

Hi,

I am very happy with Twig-persist. I am currently having issue with one of the object and getting the following stack trace. I would like to know where to look at for trouble shooting.

java.lang.ClassCastException: java.lang.Class cannot be cast to java.lang.reflect.ParameterizedType
	at com.vercer.engine.persist.strategy.DefaultFieldStrategy.replace(DefaultFieldStrategy.java:176)
	at com.vercer.engine.persist.strategy.DefaultFieldStrategy.typeOf(DefaultFieldStrategy.java:153)
	at com.vercer.engine.persist.annotation.AnnotationStrategy.typeOf(AnnotationStrategy.java:95)
	at com.vercer.engine.persist.standard.StrategyObjectDatastore$2.typeFromField(StrategyObjectDatastore.java:151)
	at com.vercer.engine.persist.translator.ObjectFieldTranslator.typesafeToProperties(ObjectFieldTranslator.java:220)
	at com.vercer.engine.persist.standard.AbstractStatelessObjectDatastore.instanceToEntity(AbstractStatelessObjectDatastore.java:74)
	at com.vercer.engine.persist.standard.AbstractStatelessObjectDatastore.store(AbstractStatelessObjectDatastore.java:62)
	at com.vercer.engine.persist.standard.AbstractStatelessObjectDatastore.store(AbstractStatelessObjectDatastore.java:158)

I also would like to try out the version 2.0 of Twig and would like some code sample of the following version 1.04 code for JodaTim field type

http://code.google.com/p/twig-persist/wiki/Configuration#Field_Types

Thanks,

[John Patterson]

Ah this code is from an old version of Twig that I am not so familiar with now.

I suggest upgrading to 2.0.

But as a hint, that method replace() dealt with changing Collection and array types into List.  Perhaps you used a raw Collection class but Twig was expecting a parameterised type like Set<String>?

[T.W.H]

Hi John,

Thanks for the reply. I don't have any raw collection. However I think, it might be because of the self referencing relationship which you address with @Root and @Embed in 2.0. I definitely would like to upgrade to 2.0 to try it out but I still need help with code sample for JodaTime field type. Can you please update 2.0 wiki for Configuration#Field_Types like the one you have here http://code.google.com/p/twig-persist/wiki/Configuration#Field_Types ?

Thanks a lot.