public void setCompositeParticipants(@Nullable List<? extends BuildParticipant> compositeParticipants) {
      myCompositeParticipants = compositeParticipants == null ? new SmartList<>() : new ArrayList<>(compositeParticipants);
    }
public void setCompositeParticipants(@Nullable List<? extends BuildParticipant> compositeParticipants)