I am porting a Flex 2 web services application to Flex 3 and
it seems the behavior has changed a little. For instance, let us
suppose we have a User object with a name field and a notes field.
If the notes field is null, previously in flex 2 nothing was
marshalled for the notes field. Now, in Flex 3, an empty String is
marshalled. Is there an easy way to get the old behavior back? Any
help would be much appreciated.