code: public boolean sendActivity(String target, SPFActivity activity) {
  		InvocationResponse resp = mExecutionInterface.sendActivity(target, activity);
  		if(resp.isResult()){
  			return GsonHelper.gson.fromJson(resp.getPayload(), Boolean.class);
  		} else {
  			return false;
  		}
  	}
docs: Dispatches an activity to the SPF instances matching the given
  identifier. The framework will perform information injection into the
  activity: such information will be available to the caller once the
  method ends.
  
  @param target
  - the target of the activity.
  @param activity
  - the activity to dispatch.
  @return - true if the activity has been correctly consumed by the
  recipient.