docs: public Activation[] getActivations() {
          final List<Activation> list = new ArrayList<Activation>();
          for (InternalAgendaGroup group : this.agendaGroups.values()) {
              for (Match activation : group.getActivations()) {
                  list.add((Activation) activation);
              }
          }
          return list.toArray( new Activation[list.size()] );
      }