"GWT addon for Spring-Roo" support of inheritance in proxied objects and of embedded objects

It appears that "GWT addon for Spring-Roo" currently does not support
either inheritance in proxied objects or embedded objects.
Following that, my questions are:
1. When will this support be available?
2. Is there any suggestion for work around (for an application that
needs such capabilities) in the meantime?
Any reply will be very much appreciated,
Thanks in advanced,
Amit Kleinmann

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