docs: private void resetPackageList() {
  		final Set<PackageDoc> set = new TreeSet<>();
          for (final PackageDoc pack : this.root.specifiedPackages()) {
              set.add(pack);
          }
          for (final ClassDoc clazz : this.root.specifiedClasses()) {
              set.add(clazz.containingPackage());
          }
          this.packages = Utils.toArray(this.packages, set);
  	}