@Properties

Hi all,
the doc states that one can annotate a map Map<String,Object> with @properties in order to do
dynamic attribute mapping for nodes. Does somebody have a working example / snipped to read a node via session.load(Class myclass,Long id) and fills the map? I always get an empty map.
Annotating attributes with @Property(name="name") of the class works nice as expected.

Can I use both @Property with @properties simultanously?
regards
Thomas