Is it possible to use ECF remote services (R-OSGi) from a "standalone"
Java client, not running OSGi ?
I don't think it is. Although the ECF core and remote services APIs
can/could be used without OSGi (although even this is largely untested),
I believe R-OSGi has some dependencies on the OSGi service registry
(e.g. NetworkChannelFactory).
If I'm wrong about this, then Jan will correct me.