@NotNull
    @Override
    List<ServiceViewItem> getChildren() {
      List<ServiceViewItem> children = super.getChildren();
      if (!myChildrenInitialized) {
        if (myProvidingContributor != null) {
          children.addAll(getContributorChildren(myProject, this, myProvidingContributor));
        }
        myChildrenInitialized = true;
        myLoaded = true;
      }
      return children;
    }
@NotNull
    @Override
    List<ServiceViewItem> getChildren()