docs: private Set<ModelDescription> loadModelsOfBundle(Bundle bundle) {
          Enumeration<URL> classEntries = bundle.findEntries("/", "*.class", true);
          Set<ModelDescription> models = new HashSet<ModelDescription>();
          if (classEntries == null) {
              LOGGER.debug("Found no classes in the bundle {}", bundle);
              return models;
          }
          while (classEntries.hasMoreElements()) {
              URL classURL = classEntries.nextElement();
              String classname = extractClassName(classURL);
              if (isModelClass(classname, bundle)) {
                  models.add(new ModelDescription(classname, bundle.getVersion().toString()));
              }
          }
          return models;
      }