DOSGi exception handling and propagation

An exception being thrown by a remote service invocation is not propagated to the "client". Instead, the client awaits a fixed period of time (10 secs) for a response.

This behavior as two major disadvantages:

1. it diminishes the interoperability between modules, as a client module will not get a precise indication if anything went wrong with the remote call;
2. it can lead to unresponsive (client) services if some shared component starts to miss behave. IMHO, if its going to fail, it should fail fast