code: protected void fireEvent(String eventName, ActivityHandle handle, Object event) {
  
          FireableEventType eventID = eventIdCache.getEventId(this.eventLookup, eventName);
  
          if (eventID == null) {
              tracer.severe("Event id for " + eventID + " is unknown, cant fire!!!");
          } else {
              try {
                  sleeEndpoint.fireEvent(handle, eventID, event, address, null);
              } catch (UnrecognizedActivityHandleException e) {
                  this.tracer.severe("Error while firing event", e);
              } catch (IllegalEventException e) {
                  this.tracer.severe("Error while firing event", e);
              } catch (ActivityIsEndingException e) {
                  this.tracer.severe("Error while firing event", e);
              } catch (NullPointerException e) {
                  this.tracer.severe("Error while firing event", e);
              } catch (SLEEException e) {
                  this.tracer.severe("Error while firing event", e);
              } catch (FireEventException e) {
                  this.tracer.severe("Error while firing event", e);
              }
          }
      }
docs: Private methods