docs: public static <T> List<T> getSubClassInstances(Class<T> tClass) {
          return new ArrayList<T>() {
              {
                  addAll(ClassGraphUtil/*TraverseClasspath*/.getSubclassInstances(tClass));
              }
  
              @Override
              public String toString() {
                  StringBuilder stringBuilder = new StringBuilder();
                  for (int i = 0; i < this.size(); i++) {
                      stringBuilder.append(get(i).getClass().getSimpleName()).append(",");
                  }
                  return stringBuilder.toString();
              }
          };
      }