AMF Serialization of Java Long

Hi,

I am wondering if there is a way to make sure the Java Long object retrieves a 'null' instead of a '0'

Even if I do not set any value to the Flex attribute, the Servers Java object retrieves a value '0'.

This is very annoying if you hava a Long as a Primary Key in a database...

Is it possible to ensure the Long objects will not get initialized with a '0' value?

Thanks!

Paul